Changeset 5328
- Timestamp:
- Aug 30, 2022 1:04:58 PM (15 months ago)
- Files:
-
- 4 added
- 4 deleted
- 3 edited
Legend:
- Unmodified
- Added
- Removed
-
Tutorials/fullrmc-SF6/fullrmc-SF6.fld/filelist.xml
r5327 r5328 8 8 <o:File HRef="image021.png"/> 9 9 <o:File HRef="image016.png"/> 10 <o:File HRef="image0 01.png"/>10 <o:File HRef="image017.png"/> 11 11 <o:File HRef="image022.png"/> 12 12 <o:File HRef="image013.png"/> 13 <o:File HRef="image0 02.png"/>13 <o:File HRef="image024.png"/> 14 14 <o:File HRef="image004.png"/> 15 15 <o:File HRef="image005.png"/> 16 16 <o:File HRef="image025.png"/> 17 <o:File HRef="image0 03.png"/>17 <o:File HRef="image031.png"/> 18 18 <o:File HRef="image006.png"/> 19 19 <o:File HRef="image007.png"/> … … 21 21 <o:File HRef="image009.png"/> 22 22 <o:File HRef="image027.png"/> 23 <o:File HRef="image0 23.png"/>23 <o:File HRef="image040.png"/> 24 24 <o:File HRef="image029.png"/> 25 25 <o:File HRef="image010.png"/> -
Tutorials/fullrmc-SF6/fullrmc-SF6.html
r5327 r5328 23 23 <o:Author>Toby, Brian H.</o:Author> 24 24 <o:LastAuthor>Toby, Brian H.</o:LastAuthor> 25 <o:Revision>2 4</o:Revision>26 <o:TotalTime>13 68</o:TotalTime>25 <o:Revision>25</o:Revision> 26 <o:TotalTime>1372</o:TotalTime> 27 27 <o:Created>2021-07-08T02:32:00Z</o:Created> 28 <o:LastSaved>2022-08-30T1 7:46:00Z</o:LastSaved>28 <o:LastSaved>2022-08-30T18:02:00Z</o:LastSaved> 29 29 <o:Pages>1</o:Pages> 30 <o:Words>39 96</o:Words>31 <o:Characters>22 780</o:Characters>32 <o:Lines>18 9</o:Lines>30 <o:Words>3972</o:Words> 31 <o:Characters>22645</o:Characters> 32 <o:Lines>188</o:Lines> 33 33 <o:Paragraphs>53</o:Paragraphs> 34 <o:CharactersWithSpaces>26 723</o:CharactersWithSpaces>34 <o:CharactersWithSpaces>26564</o:CharactersWithSpaces> 35 35 <o:Version>16.00</o:Version> 36 36 </o:DocumentProperties> … … 726 726 mso-fareast-theme-font:minor-fareast;} 727 727 h2 728 {mso-style-priority:9; 728 {mso-style-noshow:yes; 729 mso-style-priority:9; 729 730 mso-style-qformat:yes; 730 731 mso-style-link:"Heading 2 Char"; … … 753 754 font-weight:normal;} 754 755 h3 755 {mso-style-priority:9; 756 {mso-style-noshow:yes; 757 mso-style-priority:9; 756 758 mso-style-qformat:yes; 757 759 mso-style-link:"Heading 3 Char"; … … 885 887 mso-hansi-font-family:Calibri; 886 888 mso-hansi-theme-font:minor-latin; 887 mso-bidi-font-family: Arial;889 mso-bidi-font-family:"Times New Roman"; 888 890 mso-bidi-theme-font:minor-bidi; 889 891 color:#0070C0; … … 892 894 mso-bidi-font-weight:normal;} 893 895 a:link, span.MsoHyperlink 894 {mso-style-priority:99; 896 {mso-style-noshow:yes; 897 mso-style-priority:99; 895 898 color:blue; 896 899 text-decoration:underline; … … 988 991 span.Heading2Char 989 992 {mso-style-name:"Heading 2 Char"; 993 mso-style-noshow:yes; 990 994 mso-style-priority:9; 991 995 mso-style-unhide:no; … … 995 999 mso-bidi-font-size:13.0pt; 996 1000 font-family:"Times New Roman",serif; 1001 mso-ascii-font-family:"Times New Roman"; 997 1002 mso-fareast-font-family:"Times New Roman"; 998 1003 mso-fareast-theme-font:major-fareast; 1004 mso-hansi-font-family:"Times New Roman"; 999 1005 mso-bidi-font-family:"Times New Roman"; 1000 1006 mso-bidi-theme-font:major-bidi; … … 1004 1010 span.Heading3Char 1005 1011 {mso-style-name:"Heading 3 Char"; 1012 mso-style-noshow:yes; 1006 1013 mso-style-priority:9; 1007 1014 mso-style-unhide:no; … … 1061 1068 mso-bidi-font-size:11.0pt; 1062 1069 font-family:"Times New Roman",serif; 1070 mso-ascii-font-family:"Times New Roman"; 1063 1071 mso-fareast-font-family:"Times New Roman"; 1064 1072 mso-fareast-theme-font:minor-fareast; 1073 mso-hansi-font-family:"Times New Roman"; 1074 mso-bidi-font-family:"Times New Roman"; 1065 1075 color:#0070C0; 1066 1076 letter-spacing:.75pt; … … 1079 1089 mso-ansi-font-size:10.0pt; 1080 1090 mso-bidi-font-size:10.0pt; 1091 font-family:"Calibri",sans-serif; 1081 1092 mso-ascii-font-family:Calibri; 1082 1093 mso-ascii-theme-font:minor-latin; … … 1085 1096 mso-hansi-font-family:Calibri; 1086 1097 mso-hansi-theme-font:minor-latin; 1087 mso-bidi-font-family: Arial;1098 mso-bidi-font-family:"Times New Roman"; 1088 1099 mso-bidi-theme-font:minor-bidi;} 1089 1100 @page WordSection1 … … 1220 1231 font-family:Wingdings;} 1221 1232 @list l2 1222 {mso-list-id: 988291991;1233 {mso-list-id:1321731185; 1223 1234 mso-list-type:hybrid; 1224 mso-list-template-ids: 27893097667698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}1235 mso-list-template-ids:792738618 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;} 1225 1236 @list l2:level1 1226 1237 {mso-level-number-format:bullet; … … 1287 1298 font-family:Wingdings;} 1288 1299 @list l3 1289 {mso-list-id:1 321731185;1300 {mso-list-id:1737894749; 1290 1301 mso-list-type:hybrid; 1291 mso-list-template-ids: 79273861867698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}1302 mso-list-template-ids:-1132536582 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;} 1292 1303 @list l3:level1 1293 1304 {mso-level-number-format:bullet; … … 1353 1364 text-indent:-.25in; 1354 1365 font-family:Wingdings;} 1355 @list l41356 {mso-list-id:1410612904;1357 mso-list-type:hybrid;1358 mso-list-template-ids:-982907836 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}1359 @list l4:level11360 {mso-level-number-format:bullet;1361 mso-level-text:;1362 mso-level-tab-stop:none;1363 mso-level-number-position:left;1364 text-indent:-.25in;1365 font-family:Symbol;}1366 @list l4:level21367 {mso-level-number-format:bullet;1368 mso-level-text:o;1369 mso-level-tab-stop:none;1370 mso-level-number-position:left;1371 text-indent:-.25in;1372 font-family:"Courier New";}1373 @list l4:level31374 {mso-level-number-format:bullet;1375 mso-level-text:;1376 mso-level-tab-stop:none;1377 mso-level-number-position:left;1378 text-indent:-.25in;1379 font-family:Wingdings;}1380 @list l4:level41381 {mso-level-number-format:bullet;1382 mso-level-text:;1383 mso-level-tab-stop:none;1384 mso-level-number-position:left;1385 text-indent:-.25in;1386 font-family:Symbol;}1387 @list l4:level51388 {mso-level-number-format:bullet;1389 mso-level-text:o;1390 mso-level-tab-stop:none;1391 mso-level-number-position:left;1392 text-indent:-.25in;1393 font-family:"Courier New";}1394 @list l4:level61395 {mso-level-number-format:bullet;1396 mso-level-text:;1397 mso-level-tab-stop:none;1398 mso-level-number-position:left;1399 text-indent:-.25in;1400 font-family:Wingdings;}1401 @list l4:level71402 {mso-level-number-format:bullet;1403 mso-level-text:;1404 mso-level-tab-stop:none;1405 mso-level-number-position:left;1406 text-indent:-.25in;1407 font-family:Symbol;}1408 @list l4:level81409 {mso-level-number-format:bullet;1410 mso-level-text:o;1411 mso-level-tab-stop:none;1412 mso-level-number-position:left;1413 text-indent:-.25in;1414 font-family:"Courier New";}1415 @list l4:level91416 {mso-level-number-format:bullet;1417 mso-level-text:;1418 mso-level-tab-stop:none;1419 mso-level-number-position:left;1420 text-indent:-.25in;1421 font-family:Wingdings;}1422 @list l51423 {mso-list-id:1737894749;1424 mso-list-type:hybrid;1425 mso-list-template-ids:-1132536582 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}1426 @list l5:level11427 {mso-level-number-format:bullet;1428 mso-level-text:;1429 mso-level-tab-stop:none;1430 mso-level-number-position:left;1431 text-indent:-.25in;1432 font-family:Symbol;}1433 @list l5:level21434 {mso-level-number-format:bullet;1435 mso-level-text:o;1436 mso-level-tab-stop:none;1437 mso-level-number-position:left;1438 text-indent:-.25in;1439 font-family:"Courier New";}1440 @list l5:level31441 {mso-level-number-format:bullet;1442 mso-level-text:;1443 mso-level-tab-stop:none;1444 mso-level-number-position:left;1445 text-indent:-.25in;1446 font-family:Wingdings;}1447 @list l5:level41448 {mso-level-number-format:bullet;1449 mso-level-text:;1450 mso-level-tab-stop:none;1451 mso-level-number-position:left;1452 text-indent:-.25in;1453 font-family:Symbol;}1454 @list l5:level51455 {mso-level-number-format:bullet;1456 mso-level-text:o;1457 mso-level-tab-stop:none;1458 mso-level-number-position:left;1459 text-indent:-.25in;1460 font-family:"Courier New";}1461 @list l5:level61462 {mso-level-number-format:bullet;1463 mso-level-text:;1464 mso-level-tab-stop:none;1465 mso-level-number-position:left;1466 text-indent:-.25in;1467 font-family:Wingdings;}1468 @list l5:level71469 {mso-level-number-format:bullet;1470 mso-level-text:;1471 mso-level-tab-stop:none;1472 mso-level-number-position:left;1473 text-indent:-.25in;1474 font-family:Symbol;}1475 @list l5:level81476 {mso-level-number-format:bullet;1477 mso-level-text:o;1478 mso-level-tab-stop:none;1479 mso-level-number-position:left;1480 text-indent:-.25in;1481 font-family:"Courier New";}1482 @list l5:level91483 {mso-level-number-format:bullet;1484 mso-level-text:;1485 mso-level-tab-stop:none;1486 mso-level-number-position:left;1487 text-indent:-.25in;1488 font-family:Wingdings;}1489 @list l61490 {mso-list-id:2117750471;1491 mso-list-type:hybrid;1492 mso-list-template-ids:-1497714776 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}1493 @list l6:level11494 {mso-level-tab-stop:none;1495 mso-level-number-position:left;1496 text-indent:-.25in;}1497 @list l6:level21498 {mso-level-number-format:alpha-lower;1499 mso-level-tab-stop:none;1500 mso-level-number-position:left;1501 text-indent:-.25in;}1502 @list l6:level31503 {mso-level-number-format:roman-lower;1504 mso-level-tab-stop:none;1505 mso-level-number-position:right;1506 text-indent:-9.0pt;}1507 @list l6:level41508 {mso-level-tab-stop:none;1509 mso-level-number-position:left;1510 text-indent:-.25in;}1511 @list l6:level51512 {mso-level-number-format:alpha-lower;1513 mso-level-tab-stop:none;1514 mso-level-number-position:left;1515 text-indent:-.25in;}1516 @list l6:level61517 {mso-level-number-format:roman-lower;1518 mso-level-tab-stop:none;1519 mso-level-number-position:right;1520 text-indent:-9.0pt;}1521 @list l6:level71522 {mso-level-tab-stop:none;1523 mso-level-number-position:left;1524 text-indent:-.25in;}1525 @list l6:level81526 {mso-level-number-format:alpha-lower;1527 mso-level-tab-stop:none;1528 mso-level-number-position:left;1529 text-indent:-.25in;}1530 @list l6:level91531 {mso-level-number-format:roman-lower;1532 mso-level-tab-stop:none;1533 mso-level-number-position:right;1534 text-indent:-9.0pt;}1535 1366 ol 1536 1367 {margin-bottom:0in;} … … 1558 1389 mso-hansi-font-family:Calibri; 1559 1390 mso-hansi-theme-font:minor-latin; 1560 mso-bidi-font-family: Arial;1391 mso-bidi-font-family:"Times New Roman"; 1561 1392 mso-bidi-theme-font:minor-bidi;} 1562 1393 </style> … … 1577 1408 with fullrmc: SF<sub>6</sub><o:p></o:p></span></h1> 1578 1409 1579 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l 3 level1 lfo5'><BL><![if !supportLists]><span1410 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l2 level1 lfo2'><BL><![if !supportLists]><span 1580 1411 style='mso-bidi-font-size:16.0pt;font-family:Symbol;mso-fareast-font-family: 1581 1412 Symbol;mso-bidi-font-family:Symbol'><span style='mso-list:Ignore'>·<span … … 1612 1443 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 1613 1444 1614 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 1615 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri; 1616 mso-fareast-theme-font:minor-latin;mso-hansi-font-family:"Times New Roman"; 1617 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1618 mso-bidi-theme-font:major-bidi'>“Fullrmc, a Rigid Body Reverse Monte Carlo 1619 Modeling Package Enabled with Machine Learning and Artificial Intelligence”, B. 1620 Aoun, <i>Jour. Comp. Chem</i>. 2016, 37, 1102-1111. DOI: <a 1621 href="https://doi.org/10.1002/jcc.24304">https://doi.org/10.1002/jcc.24304</a>). 1622 <o:p></o:p></span></p> 1623 1624 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 1625 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri; 1626 mso-fareast-theme-font:minor-latin;mso-hansi-font-family:"Times New Roman"; 1627 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1628 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 1629 1630 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 1631 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri; 1632 mso-fareast-theme-font:minor-latin;mso-hansi-font-family:"Times New Roman"; 1633 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1634 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 1635 1636 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 1637 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri; 1638 mso-fareast-theme-font:minor-latin;mso-hansi-font-family:"Times New Roman"; 1639 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1445 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: 1446 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 1447 mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-font-family: 1448 "Times New Roman";mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1449 mso-bidi-theme-font:major-bidi'>“Atomic Stochastic Modeling & Optimization 1450 with fullrmc”, B. Aoun, <i>J. Appl. <span class=SpellE>Cryst</span></i>. 2022, (in 1451 press). <o:p></o:p></span></p> 1452 1453 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: 1454 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 1455 mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-font-family: 1456 "Times New Roman";mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1457 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 1458 1459 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: 1460 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 1461 mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-font-family: 1462 "Times New Roman";mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1640 1463 mso-bidi-theme-font:major-bidi'>“Fullrmc, a Rigid Body Reverse Monte Carlo 1641 1464 Modeling Package Enabled with Machine Learning and Artificial Intelligence”, B. … … 1689 1512 fullrmc. GSAS-II will create a <span class=GramE>fairly simple</span> script 1690 1513 incorporating an atomic model exported from GSAS-II that runs fullrmc in a 1691 fairly straightforward manner. More experienced users may wish to use this script1692 as a starting point to create much more sophisticated fitting approaches. </span><span 1693 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 1694 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman";1514 fairly straightforward manner. More experienced users may wish to use this 1515 script as a starting point to create much more sophisticated fitting 1516 approaches. </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 1517 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 1695 1518 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1696 1519 mso-bidi-theme-font:major-bidi'><o:p></o:p></span></p> … … 1723 1546 "Times New Roman";mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1724 1547 mso-bidi-theme-font:major-bidi'>is available for cloud computing via <a 1725 href="https://www.fullrmc.com/">fullrmc.com</a>. This cloud version also 1726 provides proprietary features such as machine learning.</span><span 1727 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 1728 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 1729 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1730 mso-bidi-theme-font:major-bidi'><o:p></o:p></span></p> 1548 href="https://www.fullrmc.com/">fullrmc.com</a>. This cloud version also provides 1549 proprietary features such as machine learning.</span><span style='mso-bidi-font-size: 1550 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 1551 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 1552 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'><o:p></o:p></span></p> 1731 1553 1732 1554 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 1826 1648 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 1827 1649 <o:lock v:ext="edit" aspectratio="t"/> 1828 </v:shapetype><v:shape id="Picture_x0020_18" o:spid="_x0000_i1059" type="#_x0000_t75" 1829 alt="Graphical user interface, text, application, chat or text message Description automatically generated" 1650 </v:shapetype><v:shape id="_x0000_i1059" type="#_x0000_t75" alt="Graphical user interface, text, application, chat or text message Description automatically generated" 1830 1651 style='width:565pt;height:244pt;visibility:visible;mso-wrap-style:square'> 1831 1652 <v:imagedata src="fullrmc-SF6.fld/image018.png" o:title="Graphical user interface, text, application, chat or text message Description automatically generated"/> … … 1833 1654 src="fullrmc-SF6.fld/image018.png" 1834 1655 alt="Graphical user interface, text, application, chat or text message Description automatically generated" 1835 v:shapes=" Picture_x0020_18"><![endif]></span><span style='mso-bidi-font-size:1836 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi;1656 v:shapes="_x0000_i1059"><![endif]></span><span style='mso-bidi-font-size:16.0pt; 1657 mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 1837 1658 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 1838 1659 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'><o:p></o:p></span></p> … … 1848 1669 mso-bidi-theme-font:major-bidi'>If “Yes” is pressed, a message like the one 1849 1670 below in the console window. The file name for the download will vary depending 1850 on the type of computer you have and the location where GSAS-II is installed. The1851 download time may vary from many minutes to fractions of a minute.<span1852 style='mso-spacerun:yes'> </span><o:p></o:p></span></p>1671 on the type of computer you have and the location where GSAS-II is installed. 1672 The download time may vary from many minutes to fractions of a minute.<span 1673 style='mso-spacerun:yes'> </span><o:p></o:p></span></p> 1853 1674 1854 1675 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 1922 1743 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1923 1744 mso-bidi-theme-font:major-bidi'>It has been seen that the windows .exe file did 1924 not run at least one minimal Windows installation without installation of Microsoft-supplied1925 .DLL file(s). Running the file <a1745 not run at least one minimal Windows installation without installation of 1746 Microsoft-supplied .DLL file(s). Running the file <a 1926 1747 href="https://aka.ms/vs/17/release/vc_redist.x64.exe">https://aka.ms/vs/17/release/vc_redist.x64.exe</a> 1927 1748 from <a … … 1946 1767 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 1947 1768 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1948 mso-bidi-theme-font:major-bidi'>This step is optional, but if performed you will1949 follow the steps </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:1769 mso-bidi-theme-font:major-bidi'>This step is optional, but if performed you 1770 will follow the steps </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 1950 1771 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri; 1951 1772 mso-fareast-theme-font:minor-latin;mso-hansi-font-family:"Times New Roman"; … … 1975 1796 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 1976 1797 mso-bidi-theme-font:major-bidi'>Start GSAS-II. Use the <b style='mso-bidi-font-weight: 1977 normal'>Import/Phase/from GSAS .EXP file</b> menu item to read the phase 1978 informationfor SF<sub>6 </sub>into the current GSAS-II project from file </span><b1798 normal'>Import/Phase/from GSAS .EXP file</b> menu item to read the phase information 1799 for SF<sub>6 </sub>into the current GSAS-II project from file </span><b 1979 1800 style='mso-bidi-font-weight:normal'><span style='mso-bidi-font-size:16.0pt; 1980 1801 mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; … … 1997 1818 group <i>Im</i>3<i>m</i> (or equivalently <i>Im</i>-3<i>m</i>). While GSAS-II 1998 1819 will accept the space group without inclusion of spaces, the correct input 1999 would separate the symmetry axes with spaces (<span class=SpellE>I m</span> 3 m).2000 Enter the one lattice parameter, a=5.887. There are two atoms: S atom at 0,0,0 2001 and a F at 0.251,0,0.] <o:p></o:p></span></p>1820 would separate the symmetry axes with spaces (<span class=SpellE>I m</span> 3 1821 m). Enter the one lattice parameter, a=5.887. There are two atoms: S atom at 1822 0,0,0 and a F at 0.251,0,0.] <o:p></o:p></span></p> 2002 1823 2003 1824 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2016 1837 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2017 1838 mso-bidi-theme-font:major-bidi;mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2018 id=" Picture_x0020_21" o:spid="_x0000_i1058" type="#_x0000_t75" alt="Graphical user interface, application Description automatically generated"1839 id="_x0000_i1058" type="#_x0000_t75" alt="Graphical user interface, application Description automatically generated" 2019 1840 style='width:634pt;height:172pt;visibility:visible;mso-wrap-style:square'> 2020 1841 <v:imagedata src="fullrmc-SF6.fld/image019.png" o:title="Graphical user interface, application Description automatically generated"/> … … 2022 1843 src="fullrmc-SF6.fld/image019.png" 2023 1844 alt="Graphical user interface, application Description automatically generated" 2024 v:shapes=" Picture_x0020_21"><![endif]></span><span style='mso-bidi-font-size:2025 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi;1845 v:shapes="_x0000_i1058"><![endif]></span><span style='mso-bidi-font-size:16.0pt; 1846 mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 2026 1847 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 2027 1848 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'><o:p></o:p></span></p> … … 2056 1877 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 2057 1878 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2058 mso-bidi-theme-font:major-bidi'>Select the “SF6” phase tree item, if not 2059 alreadyselected; then select the RMC tab. On this window, select fullrmc.<o:p></o:p></span></p>1879 mso-bidi-theme-font:major-bidi'>Select the “SF6” phase tree item, if not already 1880 selected; then select the RMC tab. On this window, select fullrmc.<o:p></o:p></span></p> 2060 1881 2061 1882 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2114 1935 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 2115 1936 2116 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l 3 level1 lfo5'><![if !supportLists]><span1937 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span 2117 1938 style='font-size:15.0pt;font-family:Symbol;mso-fareast-font-family:Symbol; 2118 1939 mso-bidi-font-family:Symbol'><span style='mso-list:Ignore'>·<span … … 2121 1942 the three lattice multipliers to 5 <o:p></o:p></span></p> 2122 1943 2123 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l 3 level1 lfo5'><![if !supportLists]><span1944 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span 2124 1945 style='font-size:15.0pt;font-family:Symbol;mso-fareast-font-family:Symbol; 2125 1946 mso-bidi-font-family:Symbol'><span style='mso-list:Ignore'>·<span … … 2129 1950 model are saved for plotting<o:p></o:p></span></p> 2130 1951 2131 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l 3 level1 lfo5'><![if !supportLists]><span1952 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span 2132 1953 style='font-size:15.0pt;font-family:Symbol;mso-fareast-font-family:Symbol; 2133 1954 mso-bidi-font-family:Symbol'><span style='mso-list:Ignore'>·<span … … 2137 1958 has no effect for the first fullrmc run for a project). <o:p></o:p></span></p> 2138 1959 2139 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l 3 level1 lfo5'><![if !supportLists]><span1960 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span 2140 1961 style='font-size:15.0pt;font-family:Symbol;mso-fareast-font-family:Symbol; 2141 1962 mso-bidi-font-family:Symbol'><span style='mso-list:Ignore'>·<span 2142 1963 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span 2143 dir=LTR></span><span style='font-size:15.0pt'>Create distance constraints to 2144 placehard limits on the maximum and minimum S-F and F-F distances: <o:p></o:p></span></p>1964 dir=LTR></span><span style='font-size:15.0pt'>Create distance constraints to place 1965 hard limits on the maximum and minimum S-F and F-F distances: <o:p></o:p></span></p> 2145 1966 2146 1967 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 2147 auto;text-indent:-.25in;mso-list:l 3 level2 lfo5'><![if !supportLists]><span1968 auto;text-indent:-.25in;mso-list:l2 level2 lfo2'><![if !supportLists]><span 2148 1969 style='font-size:15.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><span 2149 1970 style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> … … 2170 1991 2171 1992 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 2172 auto;text-indent:-.25in;mso-list:l 3 level2 lfo5'><![if !supportLists]><span1993 auto;text-indent:-.25in;mso-list:l2 level2 lfo2'><![if !supportLists]><span 2173 1994 style='font-size:15.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><span 2174 1995 style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> … … 2194 2015 style='font-size:15.0pt'>.<o:p></o:p></span></p> 2195 2016 2196 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l 3 level1 lfo5'><![if !supportLists]><span2017 <p class=MsoListParagraphCxSpMiddle style='text-indent:-.25in;mso-list:l2 level1 lfo2'><![if !supportLists]><span 2197 2018 style='font-size:15.0pt;font-family:Symbol;mso-fareast-font-family:Symbol; 2198 2019 mso-bidi-font-family:Symbol'><span style='mso-list:Ignore'>·<span … … 2202 2023 2203 2024 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 2204 auto;text-indent:-.25in;mso-list:l 3 level2 lfo5'><![if !supportLists]><span2025 auto;text-indent:-.25in;mso-list:l2 level2 lfo2'><![if !supportLists]><span 2205 2026 style='font-size:15.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><span 2206 2027 style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> … … 2211 2032 2212 2033 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 2213 auto;text-indent:-.25in;mso-list:l 3 level2 lfo5'><![if !supportLists]><span2034 auto;text-indent:-.25in;mso-list:l2 level2 lfo2'><![if !supportLists]><span 2214 2035 style='font-size:15.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><span 2215 2036 style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> … … 2220 2041 2221 2042 <p class=MsoListParagraphCxSpMiddle style='margin-left:1.0in;mso-add-space: 2222 auto;text-indent:-.25in;mso-list:l 3 level2 lfo5'><![if !supportLists]><span2043 auto;text-indent:-.25in;mso-list:l2 level2 lfo2'><![if !supportLists]><span 2223 2044 style='font-size:15.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><span 2224 2045 style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> … … 2229 2050 2230 2051 <p class=MsoListParagraphCxSpLast style='margin-left:1.0in;mso-add-space:auto; 2231 text-indent:-.25in;mso-list:l 3 level2 lfo5'><![if !supportLists]><span2052 text-indent:-.25in;mso-list:l2 level2 lfo2'><![if !supportLists]><span 2232 2053 style='font-size:15.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><span 2233 2054 style='mso-list:Ignore'>o<span style='font:7.0pt "Times New Roman"'> … … 2275 2096 croptop="2756f" cropbottom="5296f" cropleft="3355f" cropright="3578f"/> 2276 2097 </v:shape><![endif]--><![if !vml]><img border=0 width=638 height=518 2277 src="fullrmc-SF6.fld/image0 01.png"2098 src="fullrmc-SF6.fld/image017.png" 2278 2099 alt="Graphical user interface, text, application Description automatically generated" 2279 2100 v:shapes="Picture_x0020_37"><![endif]></span><span style='mso-bidi-font-size: … … 2324 2145 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 2325 2146 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'> => 2326 Execute menu command to start fullrmc. This creates either a shell script 2327 (fullrmc.sh) or a Windows .bat script (fullrmc.bat) to run fullrmc. A reminder 2328 on citationsis displayed, as below: <o:p></o:p></span></p>2147 Execute menu command to start fullrmc. This creates either a shell script (fullrmc.sh) 2148 or a Windows .bat script (fullrmc.bat) to run fullrmc. A reminder on citations 2149 is displayed, as below: <o:p></o:p></span></p> 2329 2150 2330 2151 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2371 2192 cropbottom="10016f" cropleft="5351f" cropright="5294f"/> 2372 2193 </v:shape><![endif]--><![if !vml]><img border=0 width=403 height=259 2373 src="fullrmc-SF6.fld/image0 02.png" v:shapes="Picture_x0020_1"><![endif]></span><span2194 src="fullrmc-SF6.fld/image024.png" v:shapes="Picture_x0020_1"><![endif]></span><span 2374 2195 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 2375 2196 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; … … 2382 2203 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 2383 2204 2384 <p class=MsoSubtitle><span style='font-size:16.0pt'>Step 2.4. Plot fullrmc 2385 results<o:p></o:p></span></p> 2205 <p class=MsoSubtitle><span style='font-size:16.0pt'>Step 2.4. Plot fullrmc results<o:p></o:p></span></p> 2386 2206 2387 2207 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2451 2271 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2452 2272 mso-bidi-theme-font:major-bidi;mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2453 id=" Picture_x0020_25" o:spid="_x0000_i1050" type="#_x0000_t75" alt="Text Description automatically generated"2273 id="_x0000_i1050" type="#_x0000_t75" alt="Text Description automatically generated" 2454 2274 style='width:442pt;height:280pt;visibility:visible;mso-wrap-style:square' 2455 o:bordertopcolor=" yellow pure" o:borderleftcolor="yellow pure"2456 o:border bottomcolor="yellow pure" o:borderrightcolor="yellow pure">2275 o:bordertopcolor="black" o:borderleftcolor="black" o:borderbottomcolor="black" 2276 o:borderrightcolor="black"> 2457 2277 <v:imagedata src="fullrmc-SF6.fld/image025.png" o:title="Text Description automatically generated" 2458 2278 croptop="5099f" cropbottom="10606f" cropleft="5283f" cropright="5238f"/> … … 2462 2282 <w:borderright type="single" width="6"/> 2463 2283 </v:shape><![endif]--><![if !vml]><img border=0 width=444 height=282 2464 src="fullrmc-SF6.fld/image0 03.png"2465 alt="Text Description automatically generated" v:shapes=" Picture_x0020_25"><![endif]></span><span2284 src="fullrmc-SF6.fld/image031.png" 2285 alt="Text Description automatically generated" v:shapes="_x0000_i1050"><![endif]></span><span 2466 2286 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 2467 2287 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; … … 2631 2451 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2632 2452 mso-bidi-theme-font:major-bidi'>The final atom positions generated in fullrmc 2633 can be imported back into GSAS-II in one of two ways for viewing or other possible2634 pos t-analysis. The <span class=GramE>Operations</span> => “Load Supercell”2635 menu command will input the atoms in the “big box” used for the model as a new 2636 phase. Here this will result in a structure with 1750 atoms in a unit cell with 2637 29.4 Å sides. One the fit results are loaded, a new phase named SF6_fullrmc 2638 will be created. Click on this phase to view it and then click on the “Draw 2639 Atoms” tab to transfer the loaded atoms into the “draw array” then click on2640 “Draw Options” to update the structure plot. The figure below shows the 2641 structure after using the sliders to move the “Camera Distance” to ~110 Å, the 2642 “Z-clipping” to >35 Å and the “van der Waals scale” to about 0.2. <o:p></o:p></span></p>2453 can be imported back into GSAS-II in one of two ways for viewing or other 2454 possible post-analysis. The <span class=GramE>Operations</span> => “Load 2455 Supercell” menu command will input the atoms in the “big box” used for the 2456 model as a new phase. Here this will result in a structure with 1750 atoms in a 2457 unit cell with 29.4 Å sides. One the fit results are loaded, a new phase named 2458 SF6_fullrmc will be created. Click on this phase to view it and then click on 2459 the “Draw Atoms” tab to transfer the loaded atoms into the “draw array” then 2460 click on “Draw Options” to update the structure plot. The figure below shows 2461 the structure after using the sliders to move the “Camera Distance” to ~110 Å, 2462 the “Z-clipping” to >35 Å and the “van der Waals scale” to about 0.2. <o:p></o:p></span></p> 2643 2463 2644 2464 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2656 2476 cropbottom="1251f" cropleft="10164f" cropright="5265f"/> 2657 2477 </v:shape><![endif]--><![if !vml]><img border=0 width=307 height=306 2658 src="fullrmc-SF6.fld/image0 23.png" v:shapes="_x0000_i1045"><![endif]></span><span2478 src="fullrmc-SF6.fld/image040.png" v:shapes="_x0000_i1045"><![endif]></span><span 2659 2479 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 2660 2480 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; … … 2683 2503 phase used to create it.) Since the previous step created phase named 2684 2504 SF6_fullrmc, this new phase will be named SF6_fullrmc_1 so that phase names are 2685 unique. After clicking on “Draw Atoms” and then “Draw Options,” the “superimposed”2686 cell appears as displayed below, again after the “van der Waals scale” is2687 lowered to about 0.05.<o:p></o:p></span></p>2505 unique. After clicking on “Draw Atoms” and then “Draw Options,” the 2506 “superimposed” cell appears as displayed below, again after the “van der Waals 2507 scale” is lowered to about 0.05.<o:p></o:p></span></p> 2688 2508 2689 2509 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2740 2560 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 2741 2561 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2742 mso-bidi-theme-font:major-bidi'>The previous fit in fullrmc, as well as the similar2743 tutorial for </span><span class=SpellE><span style='mso-bidi-font-size:16.0pt; 2744 mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi;2562 mso-bidi-theme-font:major-bidi'>The previous fit in fullrmc, as well as the 2563 similar tutorial for </span><span class=SpellE><span style='mso-bidi-font-size: 2564 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 2745 2565 mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-font-family: 2746 2566 "Times New Roman";mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; … … 2749 2569 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 2750 2570 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>, create 2751 energetically implausible structures for SF<sub>6</sub> molecules. The reason the2752 previous model is unrealistic is that the packing forces that cause the2753 molecules to shift from the crystallographic high symmetry positions and orientations2754 are too small to cause any significant distortion of the SF<sub>6</sub>2571 energetically implausible structures for SF<sub>6</sub> molecules. The reason 2572 the previous model is unrealistic is that the packing forces that cause the 2573 molecules to shift from the crystallographic high symmetry positions and 2574 orientations are too small to cause any significant distortion of the SF<sub>6</sub> 2755 2575 molecule from its idealized octahedral geometry. Vibrational modes do allow for 2756 instantaneous distortions, by bending the F-S-F angles and stretching/compressing2757 the S-F bonds, these displacements are typically small. <o:p></o:p></span></p>2576 instantaneous distortions, by bending the F-S-F angles and 2577 stretching/compressing the S-F bonds, these displacements are typically small. <o:p></o:p></span></p> 2758 2578 2759 2579 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2767 2587 mso-bidi-theme-font:major-bidi'>The unrealistic model found in <span 2768 2588 class=SpellE>RMCProfile</span> as well as here in Step 2, results from the 2769 fitting process using atomic shifts to treat two different phenomena, static and2770 vibrational disorder. Even at 0 K, atoms are in constant <span class=GramE>motion</span>2771 and this gives rise to broadening of PDF peaks. Note that here it is this instantaneous2772 vibrational distortion that broadens the first two peaks, corresponding to the 2773 S-F bond and the F-F next-nearest distance, not static disorder. Thestatic2774 dis placements of the molecules from their idealized positions could be where2775 the S atoms move from the ideal locations at (0,0,0) and (<span class=GramE>½,½</span>,½)2776 and /or where the molecule rotates so that the SF bonds are no longer oriented along2777 the unit cell axes. <o:p></o:p></span></p>2589 fitting process using atomic shifts to treat two different phenomena, static 2590 and vibrational disorder. Even at 0 K, atoms are in constant <span class=GramE>motion</span> 2591 and this gives rise to broadening of PDF peaks. Note that here it is this 2592 instantaneous vibrational distortion that broadens the first two peaks, 2593 corresponding to the S-F bond and the F-F next-nearest distance, not static 2594 disorder. The static displacements of the molecules from their idealized 2595 positions could be where the S atoms move from the ideal locations at (0,0,0) 2596 and (<span class=GramE>½,½</span>,½) and/or where the molecule rotates so that 2597 the SF bonds are no longer oriented along the unit cell axes. <o:p></o:p></span></p> 2778 2598 2779 2599 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2787 2607 mso-bidi-theme-font:major-bidi'>One of the advantages of fullrmc is that it is 2788 2608 a framework where nearly any model can be evolved using virtually any protocol 2789 that one can devise, but it should also be understood that many features of fullrmc2790 are not available within the GSAS-II GUI. To access the full power of fullrmc one 2791 must edit fullrmc scripts manually or use the fullrmc.com interface. Note however, 2792 that if GSAS-II does not provide access to desired fullrmc features, the scripts 2793 created by GSAS-II may still be of value as a starting point for customized use. 2794 <o:p></o:p></span></p>2609 that one can devise, but it should also be understood that many features of 2610 fullrmc are not available within the GSAS-II GUI. To access the full power of 2611 fullrmc one must edit fullrmc scripts manually or use the fullrmc.com 2612 interface. Note however, that if GSAS-II does not provide access to desired 2613 fullrmc features, the scripts created by GSAS-II may still be of value as a 2614 starting point for customized use. <o:p></o:p></span></p> 2795 2615 2796 2616 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2803 2623 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2804 2624 mso-bidi-theme-font:major-bidi'>In the second part of this <span class=GramE>tutorial</span> 2805 we will use the fullrmc software to pack idealized octahedral SF<sub>6</sub> 2806 molecules as rigid units into a supercell but with displacements and/or 2807 rotations ofthese molecules, but we will not allow these units to distort. <o:p></o:p></span></p>2625 we will use the fullrmc software to pack idealized octahedral SF<sub>6</sub> molecules 2626 as rigid units into a supercell but with displacements and/or rotations of 2627 these molecules, but we will not allow these units to distort. <o:p></o:p></span></p> 2808 2628 2809 2629 <p class=MsoSubtitle><span style='font-size:16.0pt;mso-fareast-font-family: … … 2820 2640 mso-bidi-theme-font:major-bidi'>First, we need to create a single discrete SF<sub>6</sub> 2821 2641 molecular unit so that we can designate this as a rigid unit. This requires 2822 lowering symmetry. Then we can use this discrete molecule as a building block for2823 our supercell. <o:p></o:p></span></p>2642 lowering symmetry. Then we can use this discrete molecule as a building block 2643 for our supercell. <o:p></o:p></span></p> 2824 2644 2825 2645 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2832 2652 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2833 2653 mso-bidi-theme-font:major-bidi'>Start by opening the SF6fit.gpx file created in 2834 the previous step (or repeat the instructions in Step 2.1 to create the asymmetric2835 unit again.) In the Atoms tab of the SF6 Phase tree entry, note that the 2836 asymmetric unit has two atoms, as shown below:<o:p></o:p></span></p>2654 the previous step (or repeat the instructions in Step 2.1 to create the 2655 asymmetric unit again.) In the Atoms tab of the SF6 Phase tree entry, note that 2656 the asymmetric unit has two atoms, as shown below:<o:p></o:p></span></p> 2837 2657 2838 2658 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 2854 2674 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 2855 2675 mso-bidi-theme-font:major-bidi'>The space group here, <i>Im</i>-3<i>m</i>, has 2856 24 general symmetry operations; these are doubled by a center of symmetry generator2857 and doubled again by the body centering generator, yielding a total of 96 2858 symmetry operations. Both the F and S atoms are on special positions, so that 2859 th e unit cell contains 2 S atoms and 12 F atoms, as noted by the site2676 24 general symmetry operations; these are doubled by a center of symmetry 2677 generator and doubled again by the body centering generator, yielding a total 2678 of 96 symmetry operations. Both the F and S atoms are on special positions, so 2679 that the unit cell contains 2 S atoms and 12 F atoms, as noted by the site 2860 2680 multiplicities shown above. If we reduce the symmetry to P 1, we will obtain an 2861 2681 asymmetric unit with two SF<sub>6</sub> molecular units. This would work for … … 2874 2694 2875 2695 <p class=MsoListParagraph style='margin-left:.75in;mso-add-space:auto; 2876 text-indent:-.25in;mso-list:l0 level1 lfo 6'><![if !supportLists]><span2696 text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span 2877 2697 style='font-size:15.0pt'><span style='mso-list:Ignore'>1)<span 2878 2698 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span … … 2884 2704 2885 2705 <h3 style='margin-left:.5in'><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2886 id=" _x0000_i1042" type="#_x0000_t75" style='width:331pt;height:377pt;2887 visibility:visible;mso-wrap-style:square'>2706 id="Picture_x0020_18" o:spid="_x0000_i1042" type="#_x0000_t75" style='width:331pt; 2707 height:377pt;visibility:visible;mso-wrap-style:square'> 2888 2708 <v:imagedata src="fullrmc-SF6.fld/image026.png" o:title=""/> 2889 2709 </v:shape><![endif]--><![if !vml]><img border=0 width=331 height=377 2890 src="fullrmc-SF6.fld/image026.png" v:shapes=" _x0000_i1042"><![endif]></span></h3>2891 2892 <p class=MsoListParagraph><span style='font-size:15.0pt'>This will open a window2893 for space group input (as below). Enter “I 1” (“<span class=SpellE>i</span> 1” 2894 is also fine but note that at least one space between the “I” and the digit “1” 2895 is needed so that GSAS-II can interpret the space group properly.) <o:p></o:p></span></p>2710 src="fullrmc-SF6.fld/image026.png" v:shapes="Picture_x0020_18"><![endif]></span></h3> 2711 2712 <p class=MsoListParagraph><span style='font-size:15.0pt'>This will open a 2713 window for space group input (as below). Enter “I 1” (“<span class=SpellE>i</span> 2714 1” is also fine but note that at least one space between the “I” and the digit 2715 “1” is needed so that GSAS-II can interpret the space group properly.) <o:p></o:p></span></p> 2896 2716 2897 2717 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: … … 2948 2768 mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 2949 2769 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 2950 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>Next, press2951 OK to perform the transformation. A new phase named “SF6 <span class=SpellE>abc</span>” 2952 is created (<span class=SpellE>abc</span> here indicates that the a, b & c axes 2953 are retained in their original order). To help remind me which phase has lowered 2954 symmetry, I renamed this to SF6-I1 with the Phase name entry on the General 2955 t ab, but this action is optional. <o:p></o:p></span></p>2770 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>Next, 2771 press OK to perform the transformation. A new phase named “SF6 <span 2772 class=SpellE>abc</span>” is created (<span class=SpellE>abc</span> here 2773 indicates that the a, b & c axes are retained in their original order). To 2774 help remind me which phase has lowered symmetry, I renamed this to SF6-I1 with 2775 the Phase name entry on the General tab, but this action is optional. <o:p></o:p></span></p> 2956 2776 2957 2777 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: … … 2959 2779 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 2960 2780 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi; 2961 mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="_x0000_i1039" type="#_x0000_t75" 2962 style='width:370pt;height:115pt;visibility:visible;mso-wrap-style:square'> 2781 mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_21" o:spid="_x0000_i1039" 2782 type="#_x0000_t75" style='width:370pt;height:115pt;visibility:visible; 2783 mso-wrap-style:square'> 2963 2784 <v:imagedata src="fullrmc-SF6.fld/image032.png" o:title=""/> 2964 2785 </v:shape><![endif]--><![if !vml]><img border=0 width=370 height=115 2965 src="fullrmc-SF6.fld/image032.png" v:shapes=" _x0000_i1039"><![endif]></span><span2786 src="fullrmc-SF6.fld/image032.png" v:shapes="Picture_x0020_21"><![endif]></span><span 2966 2787 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 2967 2788 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; … … 2977 2798 mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 2978 2799 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 2979 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>Note that2980 now that the asymmetric unit contains 1 S atom and 6 F atoms, as desired:<o:p></o:p></span></p>2800 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>Note 2801 that now that the asymmetric unit contains 1 S atom and 6 F atoms, as desired:<o:p></o:p></span></p> 2981 2802 2982 2803 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: … … 3008 2829 major-bidi;mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 3009 2830 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'> 3010 selecting the Draw Atoms tab shows us that the asymmetric unit does not yet contain3011 a discrete SF<sub>6</sub> unit:<o:p></o:p></span></p>2831 selecting the Draw Atoms tab shows us that the asymmetric unit does not yet 2832 contain a discrete SF<sub>6</sub> unit:<o:p></o:p></span></p> 3012 2833 3013 2834 <p class=MsoNormal style='margin-left:.5in'><span style='mso-bidi-font-size: … … 3029 2850 3030 2851 <p class=MsoListParagraphCxSpLast style='margin-left:.75in;mso-add-space:auto; 3031 text-indent:-.25in;mso-list:l0 level1 lfo 6'><![if !supportLists]><span2852 text-indent:-.25in;mso-list:l0 level1 lfo4'><![if !supportLists]><span 3032 2853 style='font-size:15.0pt'><span style='mso-list:Ignore'>2)<span 3033 2854 style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span … … 3043 2864 3044 2865 <h3 style='margin-left:.5in'><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3045 id=" _x0000_i1036" type="#_x0000_t75" style='width:212pt;height:330pt;3046 visibility:visible;mso-wrap-style:square'>2866 id="Picture_x0020_24" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:212pt; 2867 height:330pt;visibility:visible;mso-wrap-style:square'> 3047 2868 <v:imagedata src="fullrmc-SF6.fld/image028.png" o:title=""/> 3048 2869 </v:shape><![endif]--><![if !vml]><img border=0 width=212 height=330 3049 src="fullrmc-SF6.fld/image028.png" v:shapes=" _x0000_i1036"><![endif]></span></h3>2870 src="fullrmc-SF6.fld/image028.png" v:shapes="Picture_x0020_24"><![endif]></span></h3> 3050 2871 3051 2872 <h3><o:p> </o:p></h3> … … 3055 2876 the last three F atoms). In the next window, select that we want to place atoms 3056 2877 closest to the unit cell origin. This command will generate all <span 3057 class=GramE>the <span style='mso-spacerun:yes'></span>symmetry</span>-related2878 class=GramE>the<span style='mso-spacerun:yes'> </span>symmetry</span>-related 3058 2879 positions for each atom, as well as considering unit cell translations and will 3059 2880 select from the generated locations the position closest to (0,0,0). <o:p></o:p></span></p> 3060 2881 3061 2882 <h3 style='margin-left:.5in'><span style='font-size:15.0pt;mso-no-proof:yes'><!--[if gte vml 1]><v:shape 3062 id=" _x0000_i1035" type="#_x0000_t75" style='width:223pt;height:207pt;3063 visibility:visible;mso-wrap-style:square'>2883 id="Picture_x0020_25" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:223pt; 2884 height:207pt;visibility:visible;mso-wrap-style:square'> 3064 2885 <v:imagedata src="fullrmc-SF6.fld/image039.png" o:title=""/> 3065 2886 </v:shape><![endif]--><![if !vml]><img border=0 width=223 height=207 3066 src="fullrmc-SF6.fld/image039.png" v:shapes=" _x0000_i1035"><![endif]></span><span2887 src="fullrmc-SF6.fld/image039.png" v:shapes="Picture_x0020_25"><![endif]></span><span 3067 2888 style='font-size:15.0pt'><o:p></o:p></span></h3> 3068 2889 … … 3073 2894 3074 2895 <p class=MsoListParagraphCxSpMiddle><span style='font-size:15.0pt;mso-no-proof: 3075 yes'><!--[if gte vml 1]><v:shape id="_x0000_i1034" type="#_x0000_t75" style='width:281pt; 3076 height:234pt;visibility:visible;mso-wrap-style:square'> 2896 yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_26" o:spid="_x0000_i1034" 2897 type="#_x0000_t75" style='width:281pt;height:234pt;visibility:visible; 2898 mso-wrap-style:square'> 3077 2899 <v:imagedata src="fullrmc-SF6.fld/image035.png" o:title=""/> 3078 2900 </v:shape><![endif]--><![if !vml]><img border=0 width=281 height=234 3079 src="fullrmc-SF6.fld/image035.png" v:shapes=" _x0000_i1034"><![endif]></span><span2901 src="fullrmc-SF6.fld/image035.png" v:shapes="Picture_x0020_26"><![endif]></span><span 3080 2902 style='font-size:15.0pt'><o:p></o:p></span></p> 3081 2903 … … 3083 2905 3084 2906 <p class=MsoListParagraphCxSpLast><span style='font-size:15.0pt'>Suggestion: 3085 Use File -> “Save Project as…” to save this project under a new name. Here, I3086 used “SF6_I1”.<o:p></o:p></span></p>2907 Use File -> “Save Project as…” to save this project under a new name. Here, 2908 I used “SF6_I1”.<o:p></o:p></span></p> 3087 2909 3088 2910 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3100 2922 <p class=MsoSubtitle><span style='font-size:16.0pt'>Step 4.1. Setup fullrmc<o:p></o:p></span></p> 3101 2923 3102 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo 7'><![if !supportLists]><span2924 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo6'><![if !supportLists]><span 3103 2925 style='font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family: 3104 2926 Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> … … 3106 2928 SF6_I1, and change the supercell parameters to 5x5x5 as before and likewise 3107 2929 select 100 sets of 5K cycles. Also, as was done in step 2.2, we load the 3108 Neutron G(r) PDF, file sf6_190_gr.dat file and the neutron S(Q)-1 file sf6_190_fq.dat.3109 </p>2930 Neutron G(r) PDF, file sf6_190_gr.dat file and the neutron S(Q)-1 file 2931 sf6_190_fq.dat. </p> 3110 2932 3111 2933 <p class=MsoNormal><o:p> </o:p></p> 3112 2934 3113 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo 7'><![if !supportLists]><span2935 <p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo6'><![if !supportLists]><span 3114 2936 style='font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family: 3115 2937 Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> 3116 2938 </span></span></span><![endif]><span dir=LTR></span>However, instead of setting 3117 2939 bond distances as bonding constraints, in this simulation we want to define the 3118 SF<sub>6</sub> unit as a group of atoms that should be moved as a rigid unit. Note3119 that fullrmc does allow both bond constraints and rigid bodies to be used at 3120 the same time, but for this fit this is not needed. Rigid bodies are defined by 3121 grouping together the atoms within the body. Do this by pressing the “Define2940 SF<sub>6</sub> unit as a group of atoms that should be moved as a rigid unit. 2941 Note that fullrmc does allow both bond constraints and rigid bodies to be used 2942 at the same time, but for this fit this is not needed. Rigid bodies are defined 2943 by grouping together the atoms within the body. Do this by pressing the “Define 3122 2944 atom group” button. When this is done an atom selection window is opened, as 3123 2945 shown below: </p> … … 3127 2949 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 3128 2950 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi; 3129 mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="_x0000_i1033" type="#_x0000_t75" 3130 style='width:327pt;height:282pt;visibility:visible;mso-wrap-style:square'> 2951 mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_27" o:spid="_x0000_i1033" 2952 type="#_x0000_t75" style='width:327pt;height:282pt;visibility:visible; 2953 mso-wrap-style:square'> 3131 2954 <v:imagedata src="fullrmc-SF6.fld/image036.png" o:title=""/> 3132 2955 </v:shape><![endif]--><![if !vml]><img border=0 width=327 height=282 3133 src="fullrmc-SF6.fld/image036.png" v:shapes=" _x0000_i1033"><![endif]></span><span2956 src="fullrmc-SF6.fld/image036.png" v:shapes="Picture_x0020_27"><![endif]></span><span 3134 2957 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 3135 2958 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; … … 3144 2967 <p class=MsoNormal style='margin-left:.25in'>In this window we select all seven 3145 2968 atoms will be in the group. Note that now a group is now listed with seven 3146 atoms on the fullrmc page (shown below). Also note that the default “Group refinement3147 mode” will both rotate and translate the group. </p>2969 atoms on the fullrmc page (shown below). Also note that the default “Group 2970 refinement mode” will both rotate and translate the group. </p> 3148 2971 3149 2972 <p class=MsoNormal><o:p> </o:p></p> 3150 2973 3151 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l 5 level1 lfo9'><![if !supportLists]><span2974 <p class=MsoListParagraphCxSpFirst style='text-indent:-.25in;mso-list:l3 level1 lfo8'><![if !supportLists]><span 3152 2975 style='font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family: 3153 2976 Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> 3154 </span></span></span><![endif]><span dir=LTR></span>We previously used bond-constraints3155 to limit the distortion of the SF<sub>6</sub> molecules, but since they are now 3156 rigid units, these constraints are no longer needed. Thus, we can uncheck the “Use 3157 bond constraints” box to remove them. Note that leaving the default values of 3158 zeros for all distances also causes bond-constraints to be ignored, but the 3159 prior choice also simplifies the input screen.</p>3160 3161 <p class=MsoListParagraphCxSpLast style='text-indent:-.25in;mso-list:l 5 level1 lfo9'><![if !supportLists]><span2977 </span></span></span><![endif]><span dir=LTR></span>We previously used 2978 bond-constraints to limit the distortion of the SF<sub>6</sub> molecules, but 2979 since they are now rigid units, these constraints are no longer needed. Thus, 2980 we can uncheck the “Use bond constraints” box to remove them. Note that leaving 2981 the default values of zeros for all distances also causes bond-constraints to 2982 be ignored, but the prior choice also simplifies the input screen.</p> 2983 2984 <p class=MsoListParagraphCxSpLast style='text-indent:-.25in;mso-list:l3 level1 lfo8'><![if !supportLists]><span 3162 2985 style='font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family: 3163 2986 Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> 3164 </span></span></span><![endif]><span dir=LTR></span>We also need to set the 3165 vibrational amplitudes for the S and F atoms, by checking the “Add thermal broadening” 3166 box. Values to use here are not obvious and might need to be tweaked later, but 3167 onewould expect more motion from the lighter F atom than the heavier S atom. I2987 </span></span></span><![endif]><span dir=LTR></span>We also need to set the vibrational 2988 amplitudes for the S and F atoms, by checking the “Add thermal broadening” box. 2989 Values to use here are not obvious and might need to be tweaked later, but one 2990 would expect more motion from the lighter F atom than the heavier S atom. I 3168 2991 used as input values on the order of what I might expect for <span 3169 2992 class=SpellE>U<sub>iso</sub></span> for S and F, 0.02 Å<sup>2</sup> and 0.03 Å<sup>2</sup>, … … 3174 2997 3175 2998 <h3><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_29" 3176 o:spid="_x0000_i1032" type="#_x0000_t75" style='width:65 6pt;height:541pt;2999 o:spid="_x0000_i1032" type="#_x0000_t75" style='width:655pt;height:541pt; 3177 3000 visibility:visible;mso-wrap-style:square'> 3178 3001 <v:imagedata src="fullrmc-SF6.fld/image030.png" o:title=""/> 3179 </v:shape><![endif]--><![if !vml]><img border=0 width=65 6height=5413002 </v:shape><![endif]--><![if !vml]><img border=0 width=655 height=541 3180 3003 src="fullrmc-SF6.fld/image030.png" v:shapes="Picture_x0020_29"><![endif]></span></h3> 3181 3004 … … 3192 3015 <p class=MsoSubtitle><span style='font-size:16.0pt'>Step 4.2. Perform fit <o:p></o:p></span></p> 3193 3016 3194 <p class=MsoNormal>As was done in Step 2.3, we launch the fullrmc fit by using the3195 <span class=GramE>Operations</span> => “Setup RMC” menu command to create a <span 3196 style='mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin'>script 3197 of fullrmc commands</span> named <span style='mso-fareast-font-family:Calibri; 3198 mso-fareast-theme-font:minor-latin'>SF6fit-SF6-I1-fullrmc.py.<o:p></o:p></span></p>3017 <p class=MsoNormal>As was done in Step 2.3, we launch the fullrmc fit by using 3018 the <span class=GramE>Operations</span> => “Setup RMC” menu command to 3019 create a <span style='mso-fareast-font-family:Calibri;mso-fareast-theme-font: 3020 minor-latin'>script of fullrmc commands</span> named <span style='mso-fareast-font-family: 3021 Calibri;mso-fareast-theme-font:minor-latin'>SF6fit-SF6-I1-fullrmc.py.<o:p></o:p></span></p> 3199 3022 3200 3023 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3223 3046 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 3224 3047 3225 <p class=MsoSubtitle><span style='font-size:16.0pt'>Step 4.3. Analysis of results<o:p></o:p></span></p> 3048 <p class=MsoSubtitle><span style='font-size:16.0pt'>Step 4.3. Analysis of 3049 results<o:p></o:p></span></p> 3226 3050 3227 3051 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3231 3055 class=GramE>Operations</span> => Plot as well as the Operations => “Load 3232 3056 Supercell” menu commands. The PDF and F(Q) are not as well fit as before, but 3233 this is expected as the number of degrees of freedom has been reduced by a factor3234 of >3. (Previously there were 3*1750 degrees of freedom, but here only 6*250 3235 are used, because free atoms have three <span class=GramE>coordinates</span>3057 this is expected as the number of degrees of freedom has been reduced by a 3058 factor of >3. (Previously there were 3*1750 degrees of freedom, but here 3059 only 6*250 are used, because free atoms have three <span class=GramE>coordinates</span> 3236 3060 but rigid groups have three coordinates and three orientation parameters). The 3237 3061 fit to G(r) is also showing that the crystallographic fit slightly … … 3258 3082 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3259 3083 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3260 mso-bidi-theme-font:major-bidi'>To obtain plots from fullrmc that can be zoomed,3261 use these commands inside the fullrmc console window: <o:p></o:p></span></p>3084 mso-bidi-theme-font:major-bidi'>To obtain plots from fullrmc that can be 3085 zoomed, use these commands inside the fullrmc console window: <o:p></o:p></span></p> 3262 3086 3263 3087 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3291 3115 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3292 3116 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3293 mso-bidi-theme-font:major-bidi'>This shortening is expected, as when thermal ellipsoids3294 are used to fit a hollow bowl-shaped distribution of atomic positions, the 3295 ellipsoid center is placed inside the “bowl”. This peak displacement could be 3296 corrected by repeating this process by editing the F atom <i>x</i> position [from3297 0.251 to 0.266 (= </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:3298 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri;3299 mso-fareast- theme-font:minor-latin;mso-hansi-font-family:"Times New Roman";3300 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman";3117 mso-bidi-theme-font:major-bidi'>This shortening is expected, as when thermal 3118 ellipsoids are used to fit a hollow bowl-shaped distribution of atomic 3119 positions, the ellipsoid center is placed inside the “bowl”. This peak 3120 displacement could be corrected by repeating this process by editing the F atom 3121 <i>x</i> position [from 0.251 to 0.266 (= </span><span style='mso-bidi-font-size: 3122 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 3123 mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-font-family: 3124 "Times New Roman";mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3301 3125 mso-bidi-theme-font:major-bidi;color:black'>0.251 * 1.56/1.47</span><span 3302 3126 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 3303 3127 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3304 3128 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3305 mso-bidi-theme-font:major-bidi'>)] in the <i>Im</i>3<i>m</i> setting and then by3306 repeating the commands in steps 3 and 4 above. We will skip this here to save 3307 time. <o:p></o:p></span></p>3129 mso-bidi-theme-font:major-bidi'>)] in the <i>Im</i>3<i>m</i> setting and then 3130 by repeating the commands in steps 3 and 4 above. We will skip this here to 3131 save time. <o:p></o:p></span></p> 3308 3132 3309 3133 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3353 3177 distorted. This becomes clear by expanding the scale to look at individual 3354 3178 molecules. Optionally, changing the Draw Atoms representation from “<span 3355 class=SpellE>vdW</span> balls” to “balls and sticks” (double-click on the “Style”3356 column label) also helps make this clear. <o:p></o:p></span></p>3179 class=SpellE>vdW</span> balls” to “balls and sticks” (double-click on the 3180 “Style” column label) also helps make this clear. <o:p></o:p></span></p> 3357 3181 3358 3182 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3391 3215 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3392 3216 mso-bidi-theme-font:major-bidi'>We can compare a model where the molecule 3393 center is allowed to move, but unlike before, the molecular axes will not be allowed3394 to move from their alignment with the <i>a</i>, <i>b</i> & <i>c</i> axes by 3395 changing the “Group refinement mode” from “Rotate & Translate” to “Translate 3396 only”, as shown below:<o:p></o:p></span></p>3217 center is allowed to move, but unlike before, the molecular axes will not be 3218 allowed to move from their alignment with the <i>a</i>, <i>b</i> & <i>c</i> 3219 axes by changing the “Group refinement mode” from “Rotate & Translate” to 3220 “Translate only”, as shown below:<o:p></o:p></span></p> 3397 3221 3398 3222 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3418 3242 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3419 3243 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3420 mso-bidi-theme-font:major-bidi'>So that we do not overwrite the previous fit, save3421 the project with a new name. Here I use “SF6fitT.gpx”. After running the simulation 3422 using the <span class=GramE>Operations</span> => “Setup RMC” and then </span><span 3423 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman";3244 mso-bidi-theme-font:major-bidi'>So that we do not overwrite the previous fit, 3245 save the project with a new name. Here I use “SF6fitT.gpx”. After running the 3246 simulation using the <span class=GramE>Operations</span> => “Setup RMC” and 3247 then </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 3424 3248 mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri;mso-fareast-theme-font: 3425 3249 minor-latin;mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; … … 3442 3266 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3443 3267 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3444 mso-bidi-theme-font:major-bidi'>Viewing the atoms, and looking closely at different3445 molecules, it becomes clear that the S-F bonds remain aligned with the cell 3446 axes, but the molecules are displaced from alignment in columns. <o:p></o:p></span></p>3268 mso-bidi-theme-font:major-bidi'>Viewing the atoms, and looking closely at 3269 different molecules, it becomes clear that the S-F bonds remain aligned with 3270 the cell axes, but the molecules are displaced from alignment in columns. <o:p></o:p></span></p> 3447 3271 3448 3272 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3466 3290 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 3467 3291 3468 <h2>6. Perform a Constrained PDF Fit for SF6 with Rotations only< o:p></o:p></h2>3292 <h2>6. Perform a Constrained PDF Fit for SF6 with Rotations only</h2> 3469 3293 3470 3294 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3477 3301 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3478 3302 mso-bidi-theme-font:major-bidi'>We can compare a model where the molecule 3479 center is not allowed to move, but unlike before, the molecular axes will be allowed3480 to move from their alignment with the <i>a</i>, <i>b</i> & <i>c</i> axes by 3481 changing the “Group refinement mode” from “Translate only” to “Rotate only”, as 3482 shown below:<o:p></o:p></span></p>3303 center is not allowed to move, but unlike before, the molecular axes will be 3304 allowed to move from their alignment with the <i>a</i>, <i>b</i> & <i>c</i> 3305 axes by changing the “Group refinement mode” from “Translate only” to “Rotate 3306 only”, as shown below:<o:p></o:p></span></p> 3483 3307 3484 3308 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: … … 3507 3331 mso-bidi-theme-font:major-bidi'>Again, so that we do not overwrite the previous 3508 3332 fit, save the project with a new name. Here I use “SF6fitR.gpx”. After running 3509 the simulation using the <span class=GramE>Operations</span> => “Setup RMC” and 3510 then </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 3511 mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri;mso-fareast-theme-font: 3512 minor-latin;mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 3513 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>the </span><span 3514 style='mso-bidi-font-size:16.0pt;mso-ascii-font-family:"Times New Roman"; 3515 mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3516 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3517 mso-bidi-theme-font:major-bidi'>Operations => Execute menu commands to start 3518 fullrmc and use of Operations => Plot after completion of the fullrmc run, 3519 the results show the F(Q) Std. Err value is 12.06 and the R(r) Std. Err value 3520 is 28.06, significantly worse that both of the previous results. Thus, we can 3521 conclude that rotation of the molecules is less important for a fit to the 3522 experimental data than the translation of the molecules.<o:p></o:p></span></p> 3523 3524 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 3525 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3526 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3527 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 3528 3529 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 3530 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3531 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3532 mso-bidi-theme-font:major-bidi'>By viewing a column of molecules in this fit, it 3533 is seen that the yellow S atoms have remained aligned in columns, but the 3333 the simulation using the <span class=GramE>Operations</span> => “Setup RMC” 3334 and then </span><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 3335 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri; 3336 mso-fareast-theme-font:minor-latin;mso-hansi-font-family:"Times New Roman"; 3337 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3338 mso-bidi-theme-font:major-bidi'>the </span><span style='mso-bidi-font-size: 3339 16.0pt;mso-ascii-font-family:"Times New Roman";mso-ascii-theme-font:major-bidi; 3340 mso-hansi-font-family:"Times New Roman";mso-hansi-theme-font:major-bidi; 3341 mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:major-bidi'>Operations 3342 => Execute menu commands to start fullrmc and use of Operations => Plot 3343 after completion of the fullrmc run, the results show the F(Q) Std. Err value 3344 is 12.06 and the R(r) Std. Err value is 28.06, significantly worse that both of 3345 the previous results. Thus, we can conclude that rotation of the molecules is 3346 less important for a fit to the experimental data than the translation of the 3347 molecules.<o:p></o:p></span></p> 3348 3349 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 3350 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3351 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3352 mso-bidi-theme-font:major-bidi'><o:p> </o:p></span></p> 3353 3354 <p class=MsoNormal><span style='mso-bidi-font-size:16.0pt;mso-ascii-font-family: 3355 "Times New Roman";mso-ascii-theme-font:major-bidi;mso-hansi-font-family:"Times New Roman"; 3356 mso-hansi-theme-font:major-bidi;mso-bidi-font-family:"Times New Roman"; 3357 mso-bidi-theme-font:major-bidi'>By viewing a column of molecules in this fit, 3358 it is seen that the yellow S atoms have remained aligned in columns, but the 3534 3359 molecules have been rotated around those positions. <o:p></o:p></span></p> 3535 3360 -
trunk/GSASIIphsGUI.py
r5320 r5328 5236 5236 mainSizer = wx.BoxSizer(wx.VERTICAL) 5237 5237 mainSizer.Add(wx.StaticText(G2frame.FRMC,label= 5238 ''' "Fullrmc, a Rigid Body Reverse Monte Carlo Modeling Package Enabled with 5239 Machine Learning and Artificial Intelligence", B. Aoun, Jour. Comp. Chem. 5240 (2016), 37, 1102-1111. doi: https://doi.org/10.1002/jcc.24304; www.fullrmc.com 5238 '''* "Atomic Stochastic Modeling & Optimization with fullrmc", B. Aoun, J. Appl. Cryst. 2022, (in press); 5239 * "Fullrmc, a Rigid Body Reverse Monte Carlo Modeling Package Enabled with Machine Learning and Artificial 5240 Intelligence", B. Aoun, Jour. Comp. Chem. (2016), 37, 1102-1111. doi: https://doi.org/10.1002/jcc.24304; 5241 * www.fullrmc.com 5241 5242 ''')) 5242 5243 # if G2pwd.findfullrmc() is None: … … 6726 6727 G2G.G2MessageBox(G2frame, 6727 6728 '''For use of fullrmc, please cite: 6729 6730 "Atomic Stochastic Modeling & Optimization 6731 with fullrmc", B. Aoun, J. Appl. Cryst. 2022, 6732 (in press). 6733 6728 6734 "Fullrmc, a Rigid Body Reverse Monte Carlo 6729 6735 Modeling Package Enabled with Machine Learning
Note: See TracChangeset
for help on using the changeset viewer.