- Timestamp:
- Aug 10, 2017 10:10:12 AM (6 years ago)
- Location:
- Tutorials/CFsucrose
- Files:
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Tutorials/CFsucrose/Charge Flipping - sucrose.htm
r1941 r2991 23 23 <o:DocumentProperties> 24 24 <o:Author>Von Dreele</o:Author> 25 <o:LastAuthor> Von Dreele</o:LastAuthor>26 <o:Revision> 4</o:Revision>27 <o:TotalTime>21 01</o:TotalTime>25 <o:LastAuthor>vondreele</o:LastAuthor> 26 <o:Revision>5</o:Revision> 27 <o:TotalTime>2199</o:TotalTime> 28 28 <o:Created>2015-07-20T18:13:00Z</o:Created> 29 <o:LastSaved>201 5-07-21T17:36:00Z</o:LastSaved>30 <o:Pages> 1</o:Pages>31 <o:Words>35 23</o:Words>32 <o:Characters>20 087</o:Characters>29 <o:LastSaved>2017-08-10T15:03:00Z</o:LastSaved> 30 <o:Pages>34</o:Pages> 31 <o:Words>3548</o:Words> 32 <o:Characters>20228</o:Characters> 33 33 <o:Company>Argonne National Laboratory</o:Company> 34 <o:Lines>16 7</o:Lines>34 <o:Lines>168</o:Lines> 35 35 <o:Paragraphs>47</o:Paragraphs> 36 <o:CharactersWithSpaces>23 563</o:CharactersWithSpaces>37 <o:Version>1 5.00</o:Version>36 <o:CharactersWithSpaces>23729</o:CharactersWithSpaces> 37 <o:Version>16.00</o:Version> 38 38 </o:DocumentProperties> 39 39 <o:OfficeDocumentSettings> … … 49 49 <!--[if gte mso 9]><xml> 50 50 <w:WordDocument> 51 <w:View>Print</w:View> 52 <w:Zoom>156</w:Zoom> 51 53 <w:SpellingState>Clean</w:SpellingState> 52 54 <w:GrammarState>Clean</w:GrammarState> … … 663 665 {font-family:"Cambria Math"; 664 666 panose-1:2 4 5 3 5 4 6 3 2 4; 665 mso-font-charset: 1;667 mso-font-charset:0; 666 668 mso-generic-font-family:roman; 667 mso-font-format:other;668 669 mso-font-pitch:variable; 669 mso-font-signature: 0 0 0 0 00;}670 mso-font-signature:-536870145 1107305727 0 0 415 0;} 670 671 @font-face 671 672 {font-family:Calibri; … … 674 675 mso-generic-font-family:swiss; 675 676 mso-font-pitch:variable; 676 mso-font-signature:-5368 70145 1073786111 1 0 4150;}677 mso-font-signature:-536859905 -1073732485 9 0 511 0;} 677 678 @font-face 678 679 {font-family:Tahoma; … … 794 795 mso-bidi-font-family:"Times New Roman"; 795 796 font-weight:bold;} 797 p.msonormal0, li.msonormal0, div.msonormal0 798 {mso-style-name:msonormal; 799 mso-style-unhide:no; 800 mso-margin-top-alt:auto; 801 margin-right:0in; 802 mso-margin-bottom-alt:auto; 803 margin-left:0in; 804 mso-pagination:widow-orphan; 805 font-size:12.0pt; 806 font-family:"Times New Roman",serif; 807 mso-fareast-font-family:"Times New Roman"; 808 mso-fareast-theme-font:minor-fareast;} 796 809 span.BalloonTextChar 797 810 {mso-style-name:"Balloon Text Char"; … … 1349 1362 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1350 1363 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Pawley <span 1351 class=SpellE>dmin</span></span></b> box.</p> 1364 class=SpellE>dmin</span></span></b> box. Set the <b style='mso-bidi-font-weight: 1365 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1366 minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>Pawley 1367 neg. wt.</span></b> to <b style='mso-bidi-font-weight:normal'><span 1368 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1369 mso-hansi-theme-font:minor-latin;mso-bidi-theme-font:minor-latin'>0.001</span></b></p> 1352 1370 1353 1371 <p class=MsoNormal>When done the <b style='mso-bidi-font-weight:normal'><span … … 1375 1393 <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> 1376 1394 <o:lock v:ext="edit" aspectratio="t"/> 1377 </v:shapetype><v:shape id="Picture_x0020_ 1" o:spid="_x0000_i1062" type="#_x0000_t75"1378 style='width: 542.25pt;height:375pt;visibility:visible;mso-wrap-style:square'>1379 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 01.png" o:title=""/>1380 </v:shape><![endif]--><![if !vml]><img width= 723 height=5001381 src="Charge%20Flipping%20-%20sucrose_files/image0 01.png" v:shapes="Picture_x0020_1"><![endif]></span></p>1395 </v:shapetype><v:shape id="Picture_x0020_42" o:spid="_x0000_i1062" type="#_x0000_t75" 1396 style='width:451.5pt;height:180.75pt;visibility:visible;mso-wrap-style:square'> 1397 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image049.png" o:title=""/> 1398 </v:shape><![endif]--><![if !vml]><img width=602 height=241 1399 src="Charge%20Flipping%20-%20sucrose_files/image050.png" v:shapes="Picture_x0020_42"><![endif]></span></p> 1382 1400 1383 1401 <p class=MsoNormal>Next find the <b style='mso-bidi-font-weight:normal'><span … … 1386 1404 for some text. Do <b style='mso-bidi-font-weight:normal'><span 1387 1405 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1388 mso-hansi-theme-font:minor-latin'>Edit /Add powder histograms</span></b>; a1389 dialog box will appear</p>1390 1391 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1392 id="Picture_x0020_ 2" o:spid="_x0000_i1061" type="#_x0000_t75" style='width:240pt;1393 height:2 32.5pt;visibility:visible;mso-wrap-style:square'>1394 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 02.png" o:title=""/>1395 </v:shape><![endif]--><![if !vml]><img width=32 0 height=3101396 src="Charge%20Flipping%20-%20sucrose_files/image0 02.png" v:shapes="Picture_x0020_2"><![endif]></span></p>1406 mso-hansi-theme-font:minor-latin'>Edit Phase/Add powder histograms</span></b>; 1407 a dialog box will appear</p> 1408 1409 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1410 id="Picture_x0020_43" o:spid="_x0000_i1061" type="#_x0000_t75" style='width:241.5pt; 1411 height:228.75pt;visibility:visible;mso-wrap-style:square'> 1412 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image051.png" o:title=""/> 1413 </v:shape><![endif]--><![if !vml]><img width=322 height=305 1414 src="Charge%20Flipping%20-%20sucrose_files/image051.png" v:shapes="Picture_x0020_43"><![endif]></span></p> 1397 1415 1398 1416 <p class=MsoNormal>Select the only choice and press <b style='mso-bidi-font-weight: … … 1403 1421 1404 1422 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1405 id="Picture_x0020_ 3" o:spid="_x0000_i1060" type="#_x0000_t75" style='width:359.25pt;1406 height:37 5pt;visibility:visible;mso-wrap-style:square'>1407 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 03.png" o:title=""/>1408 </v:shape><![endif]--><![if !vml]><img width= 479 height=5001409 src="Charge%20Flipping%20-%20sucrose_files/image0 03.png" v:shapes="Picture_x0020_3"><![endif]></span></p>1423 id="Picture_x0020_44" o:spid="_x0000_i1060" type="#_x0000_t75" style='width:6in; 1424 height:376.5pt;visibility:visible;mso-wrap-style:square'> 1425 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image052.png" o:title=""/> 1426 </v:shape><![endif]--><![if !vml]><img width=576 height=502 1427 src="Charge%20Flipping%20-%20sucrose_files/image053.png" v:shapes="Picture_x0020_44"><![endif]></span></p> 1410 1428 1411 1429 <p class=MsoNormal>Ive stretched the window slightly to see the entire … … 1431 1449 1432 1450 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1433 id="Picture_x0020_4 " o:spid="_x0000_i1059" type="#_x0000_t75" style='width:375pt;1434 height:2 25pt;visibility:visible;mso-wrap-style:square'>1435 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 04.png" o:title=""/>1436 </v:shape><![endif]--><![if !vml]><img width= 500 height=3001437 src="Charge%20Flipping%20-%20sucrose_files/image0 04.png" v:shapes="Picture_x0020_4"><![endif]></span></p>1451 id="Picture_x0020_45" o:spid="_x0000_i1059" type="#_x0000_t75" style='width:468pt; 1452 height:238.5pt;visibility:visible;mso-wrap-style:square'> 1453 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image054.png" o:title=""/> 1454 </v:shape><![endif]--><![if !vml]><img width=624 height=318 1455 src="Charge%20Flipping%20-%20sucrose_files/image054.png" v:shapes="Picture_x0020_45"><![endif]></span></p> 1438 1456 1439 1457 <p class=MsoNormal>This completes the Pawley refinement setup; be careful that … … 1461 1479 to make sure it has essentially minimized. My refinement completed with <span 1462 1480 class=SpellE>Rwp</span> ~25% (NB: here and after succeeding refinements your <span 1463 class=SpellE>Rwp</span> values may be slightly different from what I show here);1464 a dialog box appears asking if you wish to load the result. Press <b1481 class=SpellE>Rwp</span> values may be slightly different from what I show 1482 here); a dialog box appears asking if you wish to load the result. Press <b 1465 1483 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1466 1484 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>OK</span></b>. … … 1469 1487 1470 1488 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1471 id="Picture_x0020_ 5" o:spid="_x0000_i1058" type="#_x0000_t75" style='width:525pt;1472 height: 450pt;visibility:visible;mso-wrap-style:square'>1473 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 05.png" o:title=""/>1474 </v:shape><![endif]--><![if !vml]><img width= 700 height=6001475 src="Charge%20Flipping%20-%20sucrose_files/image0 05.png" v:shapes="Picture_x0020_5"><![endif]></span></p>1489 id="Picture_x0020_46" o:spid="_x0000_i1058" type="#_x0000_t75" style='width:420.75pt; 1490 height:360.75pt;visibility:visible;mso-wrap-style:square'> 1491 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image055.png" o:title=""/> 1492 </v:shape><![endif]--><![if !vml]><img width=561 height=481 1493 src="Charge%20Flipping%20-%20sucrose_files/image056.png" v:shapes="Picture_x0020_46"><![endif]></span></p> 1476 1494 1477 1495 <p class=MsoNormal>It is evident from examining the plot that some improvement … … 1508 1526 if you didnt do this earlier. Repeat <b style='mso-bidi-font-weight:normal'><span 1509 1527 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1510 mso-hansi-theme-font:minor-latin'>Calculate/Refine </span></b>until converged; I1511 obtained an improved residual of ~7.3% with a much better fit at the high angle 1512 part of the pattern but still not fit well for the lower part.</p>1513 1514 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1515 id="Picture_x0020_ 6" o:spid="_x0000_i1057" type="#_x0000_t75" style='width:504.75pt;1516 height: 432.75pt;visibility:visible;mso-wrap-style:square'>1517 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 06.png" o:title=""/>1518 </v:shape><![endif]--><![if !vml]><img width= 673 height=5771519 src="Charge%20Flipping%20-%20sucrose_files/image0 06.png" v:shapes="Picture_x0020_6"><![endif]></span></p>1528 mso-hansi-theme-font:minor-latin'>Calculate/Refine </span></b>until converged; 1529 I obtained an improved residual of ~7.3% with a much better fit at the high 1530 angle part of the pattern but still not fit well for the lower part.</p> 1531 1532 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1533 id="Picture_x0020_47" o:spid="_x0000_i1057" type="#_x0000_t75" style='width:417.75pt; 1534 height:358.5pt;visibility:visible;mso-wrap-style:square'> 1535 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image057.png" o:title=""/> 1536 </v:shape><![endif]--><![if !vml]><img width=557 height=478 1537 src="Charge%20Flipping%20-%20sucrose_files/image058.png" v:shapes="Picture_x0020_47"><![endif]></span></p> 1520 1538 1521 1539 <p class=MsoNormal>What you see is that the background has a substantial … … 1526 1544 minor-latin;mso-hansi-theme-font:minor-latin'>Background</span></b>, set <b 1527 1545 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1528 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Peaks in 1529 background:No. peaks</span></b> to <b style='mso-bidi-font-weight:normal'><span1546 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Peaks in background: 1547 No. peaks</span></b> to <b style='mso-bidi-font-weight:normal'><span 1530 1548 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1531 1549 mso-hansi-theme-font:minor-latin'>1</span></b> from the pull down box; the … … 1533 1551 1534 1552 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1535 id="Picture_x0020_ 7" o:spid="_x0000_i1056" type="#_x0000_t75" style='width:366.75pt;1536 height:1 97.25pt;visibility:visible;mso-wrap-style:square'>1537 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 07.png" o:title=""/>1538 </v:shape><![endif]--><![if !vml]><img width=4 89 height=2631539 src="Charge%20Flipping%20-%20sucrose_files/image0 07.png" v:shapes="Picture_x0020_7"><![endif]></span><span1553 id="Picture_x0020_48" o:spid="_x0000_i1056" type="#_x0000_t75" style='width:325.5pt; 1554 height:165pt;visibility:visible;mso-wrap-style:square'> 1555 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image059.png" o:title=""/> 1556 </v:shape><![endif]--><![if !vml]><img width=434 height=220 1557 src="Charge%20Flipping%20-%20sucrose_files/image060.png" v:shapes="Picture_x0020_48"><![endif]></span><span 1540 1558 style='mso-spacerun:yes'> </span></p> 1541 1559 … … 1564 1582 1565 1583 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1566 id="Picture_x0020_ 8" o:spid="_x0000_i1055" type="#_x0000_t75" style='width:439.5pt;1567 height:1 99.5pt;visibility:visible;mso-wrap-style:square'>1568 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 08.png" o:title=""/>1569 </v:shape><![endif]--><![if !vml]><img width=5 86 height=2661570 src="Charge%20Flipping%20-%20sucrose_files/image0 08.png" v:shapes="Picture_x0020_8"><![endif]></span></p>1584 id="Picture_x0020_49" o:spid="_x0000_i1055" type="#_x0000_t75" style='width:418.5pt; 1585 height:184.5pt;visibility:visible;mso-wrap-style:square'> 1586 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image061.png" o:title=""/> 1587 </v:shape><![endif]--><![if !vml]><img width=558 height=246 1588 src="Charge%20Flipping%20-%20sucrose_files/image062.png" v:shapes="Picture_x0020_49"><![endif]></span></p> 1571 1589 1572 1590 <p class=MsoNormal>Go to the <b style='mso-bidi-font-weight:normal'><span … … 1603 1621 1604 1622 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1605 id=" Picture_x0020_9" o:spid="_x0000_i1054" type="#_x0000_t75" style='width:525pt;1606 height:450pt;visibility:visible;mso-wrap-style:square'>1607 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 09.png" o:title=""/>1608 </v:shape><![endif]--><![if !vml]><img width= 700 height=6001609 src="Charge%20Flipping%20-%20sucrose_files/image0 09.png" v:shapes="Picture_x0020_9"><![endif]></span></p>1623 id="_x0000_i1054" type="#_x0000_t75" style='width:383.25pt;height:328.5pt; 1624 visibility:visible;mso-wrap-style:square'> 1625 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image063.png" o:title=""/> 1626 </v:shape><![endif]--><![if !vml]><img width=511 height=438 1627 src="Charge%20Flipping%20-%20sucrose_files/image064.png" v:shapes="_x0000_i1054"><![endif]></span></p> 1610 1628 1611 1629 <p class=MsoNormal>Lets see if this is good enough for charge flipping.</p> … … 1679 1697 found in each charge flipping cycle. It will quickly drop to some level 1680 1698 (42-44%) and then for a successful charge flipping run perhaps drop again into 1681 the 20-25% range after a considerable length of time. You should save the 1682 project if you get an apparently good solution. Many times it will not drop 1683 below ~40%; just try <b style='mso-bidi-font-weight:normal'><span 1684 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1685 mso-hansi-theme-font:minor-latin'>Compute/Charge flipping</span></b> again. If 1686 several tries fail to yield a solution, go back to the last step of the Pawley 1687 refinement and just repeat it (that is do <b style='mso-bidi-font-weight:normal'><span 1688 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1689 mso-hansi-theme-font:minor-latin'>Pawley update</span></b> and <b 1699 the 20-25% range after a considerable length of time. If it does drop then let 1700 it run for a little bit; this anneals in the solution and generally gives a 1701 better result. You should save the project if you get an apparently good 1702 solution. Many times it will not drop below ~40%; just try <b style='mso-bidi-font-weight: 1703 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1704 minor-latin;mso-hansi-theme-font:minor-latin'>Compute/Charge flipping</span></b> 1705 again. If several tries fail to yield a solution, go back to the last step of 1706 the Pawley refinement and just repeat it (that is do <b style='mso-bidi-font-weight: 1707 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1708 minor-latin;mso-hansi-theme-font:minor-latin'>Pawley update</span></b> and <b 1690 1709 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1691 1710 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Calculate/Refine</span></b>). … … 1700 1719 1701 1720 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1702 id="Picture_x0020_ 30" o:spid="_x0000_i1053" type="#_x0000_t75" style='width:337.5pt;1703 height:2 25pt;visibility:visible;mso-wrap-style:square'>1704 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 10.png" o:title=""/>1705 </v:shape><![endif]--><![if !vml]><img width= 450 height=3001706 src="Charge%20Flipping%20-%20sucrose_files/image0 10.png" v:shapes="Picture_x0020_30"><![endif]></span></p>1721 id="Picture_x0020_51" o:spid="_x0000_i1053" type="#_x0000_t75" style='width:468pt; 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1809 position:absolute;z-index:251662336;margin-left:315px;margin-top:308px; 1810 width:16px;height:35px'><img width=16 height=35 1811 src="Charge%20Flipping%20-%20sucrose_files/image011.png" v:shapes="Group_x0020_39 Arc_x0020_37 Arc_x0020_38"></span><![endif]><span 1812 style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_11" 1813 o:spid="_x0000_i1052" type="#_x0000_t75" style='width:502.5pt;height:431.25pt; 1820 </v:shape><w:wrap anchorx="margin"/> 1821 </v:group><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position: 1822 absolute;z-index:251662336;margin-left:236px;margin-top:204px;width:15px; 1823 height:34px'><img width=15 height=34 1824 src="Charge%20Flipping%20-%20sucrose_files/image067.png" v:shapes="Group_x0020_39 Arc_x0020_37 Arc_x0020_38"></span><![endif]><span 1825 style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_52" 1826 o:spid="_x0000_i1052" type="#_x0000_t75" style='width:366pt;height:315.75pt; 1814 1827 visibility:visible;mso-wrap-style:square'> 1815 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image012.png" o:title="" 1816 croptop="3005f" cropbottom="25112f" cropleft="36677f" cropright="13798f"/> 1817 </v:shape><![endif]--><![if !vml]><img width=670 height=575 1818 src="Charge%20Flipping%20-%20sucrose_files/image013.jpg" v:shapes="Picture_x0020_11"><![endif]></span></p> 1828 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image068.png" o:title=""/> 1829 </v:shape><![endif]--><![if !vml]><img width=488 height=421 1830 src="Charge%20Flipping%20-%20sucrose_files/image069.png" v:shapes="Picture_x0020_52"><![endif]></span></p> 1819 1831 1820 1832 <p class=MsoNormal>The result looks very promising! Charge flipping operates 1821 1833 without regard to symmetry and GSAS-II attempts to locate the map with respect 1822 to the symmetry elements from the computed reflection phases. (NB: charge 1823 flipping also will give a solution without regard to handedness; this solution 1824 may be either the correct one for sucrose or its inverse.) Errors in these 1825 phases can disrupt this process so that the map and peak positions are offset 1826 from their true positions. To discover this and fix it, rotate the drawing 1827 around to check that atom positions are related via the 2<sub>1</sub> screw 1828 axis (through the multicolored cross in the center of the cell and parallel to 1829 the y-axis the green cell edge). Avoid motions with the right mouse button 1830 pressed, this moves the cross. To recover, press the <b style='mso-bidi-font-weight: 1831 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1832 m inor-latin;mso-hansi-theme-font:minor-latin'>C</span></b> key to resetthe1833 c ross to the cell center. Ive placed the symbol for a 2<sub>1</sub> axis on my1834 drawing above to show where I think it should be. If you find an offset to the 1835 map,orient it so the offset is horizontal or vertical and then press the <b1834 to the symmetry elements from the computed reflection phases. (NB: charge flipping 1835 also will give a solution without regard to handedness; this solution may be 1836 either the correct one for sucrose or its inverse.) Errors in these phases can 1837 disrupt this process so that the map and peak positions are offset from their 1838 true positions. To discover this and fix it, rotate the drawing around to check 1839 that atom positions are related via the 2<sub>1</sub> screw axis (through the 1840 multicolored cross in the center of the cell and parallel to the y-axis the 1841 green cell edge). Avoid motions with the right mouse button pressed, this moves 1842 the cross. To recover, press the <b style='mso-bidi-font-weight:normal'><span 1843 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1844 mso-hansi-theme-font:minor-latin'>C</span></b> key to reset the cross to the 1845 cell center. Ive placed the symbol for a 2<sub>1</sub> axis on my drawing 1846 above to show where I think it should be. If you find an offset to the map, 1847 orient it so the offset is horizontal or vertical and then press the <b 1836 1848 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1837 1849 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>L</span></b>, … … 1851 1863 1852 1864 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1853 id="Picture_x0020_12" o:spid="_x0000_i1051" type="#_x0000_t75" style='width:500.25pt; 1854 height:424.5pt;visibility:visible;mso-wrap-style:square'> 1855 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image014.png" o:title="" 1856 croptop="635f" cropbottom="27738f" cropleft="37732f" cropright="12675f"/> 1857 </v:shape><![endif]--><![if !vml]><img width=667 height=566 1858 src="Charge%20Flipping%20-%20sucrose_files/image015.jpg" v:shapes="Picture_x0020_12"><![endif]></span></p> 1865 id="Picture_x0020_53" o:spid="_x0000_i1051" type="#_x0000_t75" style='width:399pt; 1866 height:345pt;visibility:visible;mso-wrap-style:square'> 1867 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image070.png" o:title=""/> 1868 </v:shape><![endif]--><![if !vml]><img width=532 height=460 1869 src="Charge%20Flipping%20-%20sucrose_files/image071.png" v:shapes="Picture_x0020_53"><![endif]></span></p> 1859 1870 1860 1871 <h2>Step 4: Obtain solution from charge flip result</h2> … … 1868 1879 minor-latin'>dzero</span></b></span> column gives the distance of each peak 1869 1880 from the origin. The menu items under Map peaks give you several tools to aid 1870 in the peak selection process; we will just use a couple in this example. I have1871 chosen to proceed by sorting the atoms by <b style='mso-bidi-font-weight:normal'><span 1872 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1873 m so-hansi-theme-font:minor-latin'>z</span></b>, selecting all and then finding1874 the unique ones. </p>1881 in the peak selection process; we will just use a couple in this example. I 1882 have chosen to proceed by sorting the atoms by <b style='mso-bidi-font-weight: 1883 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 1884 minor-latin;mso-hansi-theme-font:minor-latin'>z</span></b>, selecting all and 1885 then finding the unique ones. </p> 1875 1886 1876 1887 <p class=MsoListParagraph style='margin-left:.75in;text-indent:-.25in; … … 1895 1906 mso-hansi-theme-font:minor-latin'>Map peaks/Unique peaks</span></b>. That 1896 1907 should select (grey) 23 out of 46 peak positions in the table and all should be 1897 near the top of the list. The console displays this as both the number of unique1898 peaks and the fraction found (the ideal value<span class=GramE>,0.5</span>, for 1899 the latter is easily inferred from the space group). Given the formula for 1900 sucrose is C<sub>12</sub>H<sub>22</sub>O<sub>11</sub> that would be all the C 1901 & O atoms! They will be colored green in the plot. If more are selected 1902 then check the map offset it may need a slightcorrection.</p>1903 1904 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1905 id="Picture_x0020_ 13" o:spid="_x0000_i1050" type="#_x0000_t75" style='width:337.5pt;1906 height: 411.75pt;visibility:visible;mso-wrap-style:square'>1907 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 16.png" o:title=""/>1908 </v:shape><![endif]--><![if !vml]><img width= 450 height=5491909 src="Charge%20Flipping%20-%20sucrose_files/image0 16.png" v:shapes="Picture_x0020_13"><![endif]></span></p>1908 near the top of the list. The console displays this as both the number of 1909 unique peaks and the fraction found (the ideal value, 0.5, for the latter is 1910 easily inferred from the space group). Given the formula for sucrose is C<sub>12</sub>H<sub>22</sub>O<sub>11</sub> 1911 that would be all the C & O atoms! They will be colored green in the plot. 1912 If more are selected then check the map offset it may need a slight 1913 correction.</p> 1914 1915 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1916 id="Picture_x0020_54" o:spid="_x0000_i1050" type="#_x0000_t75" style='width:382.5pt; 1917 height:309.75pt;visibility:visible;mso-wrap-style:square'> 1918 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image072.png" o:title=""/> 1919 </v:shape><![endif]--><![if !vml]><img width=510 height=413 1920 src="Charge%20Flipping%20-%20sucrose_files/image073.png" v:shapes="Picture_x0020_54"><![endif]></span></p> 1910 1921 1911 1922 <p class=MsoNormal>The drawing shows the selected atoms in green.</p> 1912 1923 1913 1924 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1914 id="Picture_x0020_14" o:spid="_x0000_i1049" type="#_x0000_t75" style='width:7in; 1915 height:429pt;visibility:visible;mso-wrap-style:square'> 1916 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image017.png" o:title="" 1917 croptop="610f" cropbottom="27878f" cropleft="37728f" cropright="12806f"/> 1918 </v:shape><![endif]--><![if !vml]><img width=672 height=572 1919 src="Charge%20Flipping%20-%20sucrose_files/image018.jpg" v:shapes="Picture_x0020_14"><![endif]></span></p> 1925 id="Picture_x0020_55" o:spid="_x0000_i1049" type="#_x0000_t75" style='width:394.5pt; 1926 height:342.75pt;visibility:visible;mso-wrap-style:square'> 1927 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image074.png" o:title=""/> 1928 </v:shape><![endif]--><![if !vml]><img width=526 height=457 1929 src="Charge%20Flipping%20-%20sucrose_files/image075.png" v:shapes="Picture_x0020_55"><![endif]></span></p> 1920 1930 1921 1931 <p class=MsoNormal>Notice that in my case one atom is in a neighboring … … 1938 1948 1939 1949 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1940 id="Picture_x0020_15" o:spid="_x0000_i1048" type="#_x0000_t75" style='width:7in; 1941 height:433.5pt;visibility:visible;mso-wrap-style:square'> 1942 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image019.png" o:title="" 1943 croptop="735f" cropbottom="27738f" cropleft="37833f" cropright="12817f"/> 1944 </v:shape><![endif]--><![if !vml]><img width=672 height=578 1945 src="Charge%20Flipping%20-%20sucrose_files/image020.jpg" v:shapes="Picture_x0020_15"><![endif]></span></p> 1946 1947 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1948 id="_x0000_i1047" type="#_x0000_t75" style='width:525pt;height:414.75pt; 1949 visibility:visible;mso-wrap-style:square'> 1950 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image021.png" o:title=""/> 1951 </v:shape><![endif]--><![if !vml]><img width=700 height=553 1952 src="Charge%20Flipping%20-%20sucrose_files/image021.png" v:shapes="_x0000_i1047"><![endif]></span></p> 1950 id="Picture_x0020_56" o:spid="_x0000_i1048" type="#_x0000_t75" style='width:375.75pt; 1951 height:326.25pt;visibility:visible;mso-wrap-style:square'> 1952 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image076.png" o:title=""/> 1953 </v:shape><![endif]--><![if !vml]><img width=501 height=435 1954 src="Charge%20Flipping%20-%20sucrose_files/image077.png" v:shapes="Picture_x0020_56"><![endif]></span></p> 1955 1956 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1957 id="Picture_x0020_57" o:spid="_x0000_i1047" type="#_x0000_t75" style='width:417.75pt; 1958 height:332.25pt;visibility:visible;mso-wrap-style:square'> 1959 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image078.png" o:title=""/> 1960 </v:shape><![endif]--><![if !vml]><img width=557 height=443 1961 src="Charge%20Flipping%20-%20sucrose_files/image079.png" v:shapes="Picture_x0020_57"><![endif]></span></p> 1953 1962 1954 1963 <p class=MsoNormal>The atom names indicate the peak magnitude to aid … … 1976 1985 1977 1986 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 1978 id="Picture_x0020_17" o:spid="_x0000_i1046" type="#_x0000_t75" style='width:525pt; 1979 height:417pt;visibility:visible;mso-wrap-style:square'> 1980 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image022.png" o:title=""/> 1981 </v:shape><![endif]--><![if !vml]><img width=700 height=556 1982 src="Charge%20Flipping%20-%20sucrose_files/image022.png" v:shapes="Picture_x0020_17"><![endif]></span></p> 1983 1984 <p class=MsoNormal>Notice that in this case the atom list is neatly sorted out into 1985 two groups with a clear gap between M79 and M64. The higher ones are likely to 1986 be the 11 O-atoms and the rest are the 12 C-atoms. There may be a bit of 1987 ambiguity in the middle, but just assign the top 11 as O and the rest as C and 1988 see what happens. You can do this by selecting a block of atoms, go to <b 1989 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1990 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Edit/Modify 1991 atom parameters</span></b> and select <b style='mso-bidi-font-weight:normal'><span 1992 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 1993 mso-hansi-theme-font:minor-latin'>Type</span></b> from the dialog box; a 1994 periodic table will appear. Select the desired element and they will be changed 1995 in the list and drawing. (NB: I show below the result from a different charge 1996 flipping run which had a different origin choice so the sucrose molecule is 1997 more fragmented).</p> 1998 1999 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2000 id="Picture_x0020_44" o:spid="_x0000_i1045" type="#_x0000_t75" style='width:363pt; 2001 height:309.75pt;visibility:visible;mso-wrap-style:square'> 2002 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image023.png" o:title="" 2003 croptop="13142f" cropbottom="15218f" cropleft="37794f" cropright="12724f"/> 2004 </v:shape><![endif]--><![if !vml]><img width=484 height=413 2005 src="Charge%20Flipping%20-%20sucrose_files/image024.jpg" v:shapes="Picture_x0020_44"><![endif]></span></p> 1987 id="Picture_x0020_58" o:spid="_x0000_i1046" type="#_x0000_t75" style='width:468pt; 1988 height:372.75pt;visibility:visible;mso-wrap-style:square'> 1989 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image080.png" o:title=""/> 1990 </v:shape><![endif]--><![if !vml]><img width=624 height=497 1991 src="Charge%20Flipping%20-%20sucrose_files/image081.png" v:shapes="Picture_x0020_58"><![endif]></span></p> 1992 1993 <p class=MsoNormal>Notice that in this case the atom list is neatly sorted out 1994 into two groups with a clear gap between M80 and M64. The higher ones are 1995 likely to be the 11 O-atoms and the rest are the 12 C-atoms. There may be a bit 1996 of ambiguity in the middle, but just assign the top 11 as O and the rest as C 1997 and see what happens. You can do this by selecting a block of atoms, go to <b 1998 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 1999 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Edit 2000 Atoms/On selected atoms 2001 /Modify atom parameters</span></b> and select <b 2002 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2003 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Type</span></b> 2004 from the dialog box; a periodic table will appear. Select the desired element 2005 and they will be changed in the list and drawing. <span style='mso-no-proof: 2006 yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_59" o:spid="_x0000_i1045" 2007 type="#_x0000_t75" style='width:407.25pt;height:351pt;visibility:visible; 2008 mso-wrap-style:square'> 2009 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image082.png" o:title=""/> 2010 </v:shape><![endif]--><![if !vml]><img width=543 height=468 2011 src="Charge%20Flipping%20-%20sucrose_files/image083.png" v:shapes="Picture_x0020_59"><![endif]></span></p> 2006 2012 2007 2013 <p class=MsoNormal>The original charge flipping solution is still visible and … … 2014 2020 2015 2021 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2016 id="Picture_x0020_ 45" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:525pt;2017 height: 445.5pt;visibility:visible;mso-wrap-style:square'>2018 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 25.png" o:title=""/>2019 </v:shape><![endif]--><![if !vml]><img width= 700 height=5942020 src="Charge%20Flipping%20-%20sucrose_files/image0 25.png" v:shapes="Picture_x0020_45"><![endif]></span></p>2022 id="Picture_x0020_60" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:405pt; 2023 height:323.25pt;visibility:visible;mso-wrap-style:square'> 2024 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image084.png" o:title=""/> 2025 </v:shape><![endif]--><![if !vml]><img width=540 height=431 2026 src="Charge%20Flipping%20-%20sucrose_files/image085.png" v:shapes="Picture_x0020_60"><![endif]></span></p> 2021 2027 2022 2028 <p class=MsoNormal>Now one can safely remove the map peaks (do <b … … 2033 2039 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2034 2040 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>General</span></b> 2035 tab). The atom positions I obtained in this charge flipping run have the 2036 sucrose molecule fragmented over several neighboring molecules. We need assemble2037 theseinto a single molecule. Follow the steps:</p>2041 tab). The atom positions I obtained in this charge flipping run have the sucrose 2042 molecule fragmented over several neighboring molecules. We need assemble these 2043 into a single molecule. Follow the steps:</p> 2038 2044 2039 2045 <p class=MsoListParagraph style='margin-left:.75in;text-indent:-.25in; … … 2042 2048 </span></span></span><![endif]>In the Atoms tab of the Data window do <b 2043 2049 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2044 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Edit /Reload2050 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Edit Atoms/Reload 2045 2051 draw <span class=GramE>atoms<span style='font-family:"Times New Roman",serif; 2046 2052 font-weight:normal'>.</span></span></span></b> This ensures the drawing is … … 2053 2059 <span class=GramE>O(</span>1) in the drawing above as that is likely to be the 2054 2060 bridging O-atom between the two rings of sucrose. With the Atoms table showing 2055 on the data window, use Shift-Left mouse button on the desired atom; it will 2056 turngreen indicating selection.</p>2061 on the data window, use Shift-Left mouse button on the desired atom; it will turn 2062 green indicating selection.</p> 2057 2063 2058 2064 <p class=MsoListParagraph style='margin-left:.75in;text-indent:-.25in; … … 2061 2067 </span></span></span><![endif]>Then in the Atoms menu do <b style='mso-bidi-font-weight: 2062 2068 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2063 minor-latin;mso-hansi-theme-font:minor-latin'>Edit /Assemble molecule</span></b>;2069 minor-latin;mso-hansi-theme-font:minor-latin'>Edit Atoms/Assemble molecule</span></b>; 2064 2070 a popup dialog offering choices of distances (& angles not used). Press <b 2065 2071 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; … … 2071 2077 2072 2078 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2073 id="Picture_x0020_20" o:spid="_x0000_i1043" type="#_x0000_t75" style='width:360.75pt; 2074 height:312pt;visibility:visible;mso-wrap-style:square'> 2075 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image026.png" o:title="" 2076 croptop="14042f" cropbottom="14048f" cropleft="39221f" cropright="11359f"/> 2077 </v:shape><![endif]--><![if !vml]><img width=481 height=416 2078 src="Charge%20Flipping%20-%20sucrose_files/image027.jpg" v:shapes="Picture_x0020_20"><![endif]></span></p> 2079 id="Picture_x0020_61" o:spid="_x0000_i1043" type="#_x0000_t75" style='width:360.75pt; 2080 height:312.75pt;visibility:visible;mso-wrap-style:square'> 2081 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image086.png" o:title=""/> 2082 </v:shape><![endif]--><![if !vml]><img width=481 height=417 2083 src="Charge%20Flipping%20-%20sucrose_files/image087.png" v:shapes="Picture_x0020_61"><![endif]></span></p> 2079 2084 2080 2085 <p class=MsoNormal>Ive changed the style to balls & sticks and added the … … 2082 2087 2083 2088 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2084 id="Picture_x0020_ 46" o:spid="_x0000_i1042" type="#_x0000_t75" style='width:525pt;2085 height: 449.25pt;visibility:visible;mso-wrap-style:square'>2086 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 28.png" o:title=""/>2087 </v:shape><![endif]--><![if !vml]><img width= 700 height=5992088 src="Charge%20Flipping%20-%20sucrose_files/image0 28.png" v:shapes="Picture_x0020_46"><![endif]></span></p>2089 id="Picture_x0020_62" o:spid="_x0000_i1042" type="#_x0000_t75" style='width:430.5pt; 2090 height:342.75pt;visibility:visible;mso-wrap-style:square'> 2091 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image088.png" o:title=""/> 2092 </v:shape><![endif]--><![if !vml]><img width=574 height=457 2093 src="Charge%20Flipping%20-%20sucrose_files/image089.png" v:shapes="Picture_x0020_62"><![endif]></span></p> 2089 2094 2090 2095 <p class=MsoNormal>If it happens that the Assemble molecule routine leaves one 2091 or two atoms out, rerun it adjusting the Bond search factor to a slightly 2092 larger value (e.g. 0.9 vs 0.85). That should pick up the outliers.</p> 2096 or two atoms out, rerun it adjusting <span class=GramE>the</span> Bond search 2097 factor to a slightly larger value (e.g. 0.9 vs 0.85). That should pick up the 2098 outliers.</p> 2093 2099 2094 2100 <p class=MsoNormal>To rename the atoms, select all the atoms (double click in … … 2096 2102 grey. Then do <b style='mso-bidi-font-weight:normal'><span style='font-family: 2097 2103 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 2098 minor-latin'>Edit/Modify atom parameters</span></b>. Select <b 2099 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2104 minor-latin'>Edit Atoms/On selected atoms 2105 /Modify atom parameters</span></b>. 2106 Select <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2100 2107 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Name</span></b> 2101 2108 from the popup window and press <b style='mso-bidi-font-weight:normal'><span … … 2105 2112 2106 2113 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2107 id="Picture_x0020_ 47" o:spid="_x0000_i1041" type="#_x0000_t75" style='width:525pt;2108 height: 450.75pt;visibility:visible;mso-wrap-style:square'>2109 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 29.png" o:title=""/>2110 </v:shape><![endif]--><![if !vml]><img width= 700 height=6012111 src="Charge%20Flipping%20-%20sucrose_files/image0 29.png" v:shapes="Picture_x0020_47"><![endif]></span></p>2114 id="Picture_x0020_63" o:spid="_x0000_i1041" type="#_x0000_t75" style='width:405pt; 2115 height:322.5pt;visibility:visible;mso-wrap-style:square'> 2116 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image090.png" o:title=""/> 2117 </v:shape><![endif]--><![if !vml]><img width=540 height=430 2118 src="Charge%20Flipping%20-%20sucrose_files/image091.png" v:shapes="Picture_x0020_63"><![endif]></span></p> 2112 2119 2113 2120 <p class=MsoNormal>You can also reorder the atoms to make the connectivity 2114 conform to usual chemical naming rules; use the Alt key to pick & place 2115 each atom to be moved just as we did with the Map peak results above.</p> 2121 conform to usual chemical naming <span class=GramE>rules</span>; use the Alt 2122 key to pick & place each atom to be moved just as we did with the Map peak 2123 results above.</p> 2116 2124 2117 2125 <p class=MsoNormal>Save the project file; the next step is to complete the … … 2169 2177 mso-hansi-theme-font:minor-latin'>Calculate/Refine</span></b> from the main 2170 2178 GSAS-II data tree menu; only scale and background are refined. I got <span 2171 class=SpellE>Rwp</span> ~2 0%. The plot shows clear intensity differences; the2179 class=SpellE>Rwp</span> ~25%. The plot shows clear intensity differences; the 2172 2180 atom positions obviously need refinement.</p> 2173 2181 2174 2182 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2175 id="Picture_x0020_ 21" o:spid="_x0000_i1040" type="#_x0000_t75" style='width:525pt;2176 height: 450pt;visibility:visible;mso-wrap-style:square'>2177 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 30.png" o:title=""/>2178 </v:shape><![endif]--><![if !vml]><img width= 700 height=6002179 src="Charge%20Flipping%20-%20sucrose_files/image0 30.png" v:shapes="Picture_x0020_21"><![endif]></span></p>2183 id="Picture_x0020_64" o:spid="_x0000_i1040" type="#_x0000_t75" style='width:440.25pt; 2184 height:377.25pt;visibility:visible;mso-wrap-style:square'> 2185 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image092.png" o:title=""/> 2186 </v:shape><![endif]--><![if !vml]><img width=587 height=503 2187 src="Charge%20Flipping%20-%20sucrose_files/image093.png" v:shapes="Picture_x0020_64"><![endif]></span></p> 2180 2188 2181 2189 <p class=MsoNormal>Ive shifted & zoomed in to make the differences more … … 2199 2207 2200 2208 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2201 id="Picture_x0020_ 48" o:spid="_x0000_i1039" type="#_x0000_t75" style='width:525pt;2202 height:2 25pt;visibility:visible;mso-wrap-style:square'>2203 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 31.png" o:title=""/>2204 </v:shape><![endif]--><![if !vml]><img width= 700 height=3002205 src="Charge%20Flipping%20-%20sucrose_files/image0 31.png" v:shapes="Picture_x0020_48"><![endif]></span></p>2209 id="Picture_x0020_65" o:spid="_x0000_i1039" type="#_x0000_t75" style='width:468pt; 2210 height:213.75pt;visibility:visible;mso-wrap-style:square'> 2211 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image094.png" o:title=""/> 2212 </v:shape><![endif]--><![if !vml]><img width=624 height=285 2213 src="Charge%20Flipping%20-%20sucrose_files/image095.png" v:shapes="Picture_x0020_65"><![endif]></span></p> 2206 2214 2207 2215 <p class=MsoNormal>To deal with the warning we need to set a Hold on one atom 2208 2216 y-coordinate. Select <b style='mso-bidi-font-weight:normal'><span 2209 2217 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2210 mso-hansi-theme-font:minor-latin'>Constraints</span></b> in the main GSAS-II data 2211 tree.</p> 2212 2213 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2214 id="Picture_x0020_23" o:spid="_x0000_i1038" type="#_x0000_t75" style='width:225pt; 2215 height:187.5pt;visibility:visible;mso-wrap-style:square'> 2216 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image032.png" o:title=""/> 2217 </v:shape><![endif]--><![if !vml]><img width=300 height=250 2218 src="Charge%20Flipping%20-%20sucrose_files/image032.png" v:shapes="Picture_x0020_23"><![endif]></span></p> 2218 mso-hansi-theme-font:minor-latin'>Constraints</span></b> in the main GSAS-II 2219 data tree; the <b style='mso-bidi-font-weight:normal'><span style='font-family: 2220 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 2221 minor-latin;mso-bidi-theme-font:minor-latin'>Phase</span></b> tab is the one we 2222 want here.</p> 2223 2224 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2225 id="Picture_x0020_66" o:spid="_x0000_i1038" type="#_x0000_t75" style='width:468pt; 2226 height:213.75pt;visibility:visible;mso-wrap-style:square'> 2227 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image096.png" o:title=""/> 2228 </v:shape><![endif]--><![if !vml]><img width=624 height=285 2229 src="Charge%20Flipping%20-%20sucrose_files/image097.png" v:shapes="Picture_x0020_66"><![endif]></span></p> 2219 2230 2220 2231 <p class=MsoNormal>Do an <b style='mso-bidi-font-weight:normal'><span 2221 2232 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2222 mso-hansi-theme-font:minor-latin'>Edit /Add hold</span></b> and select <b2223 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2224 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>0:<span 2225 class=GramE>:dAy:0</span> for O(1)</span></b> from the dialog box. Notice the 2226 use of a filter to shorten the list. This will fix the shift along y for the <span 2227 class=GramE>O(</span>1) atom.</p>2228 2229 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2230 id="Picture_x0020_ 49" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:468.75pt;2231 height: 300pt;visibility:visible;mso-wrap-style:square'>2232 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 33.png" o:title=""/>2233 </v:shape><![endif]--><![if !vml]><img width=62 5 height=4002234 src="Charge%20Flipping%20-%20sucrose_files/image0 33.png" v:shapes="Picture_x0020_49"><![endif]></span></p>2233 mso-hansi-theme-font:minor-latin'>Edit Constr<span class=GramE>./</span>Add 2234 hold</span></b> and select <b style='mso-bidi-font-weight:normal'><span 2235 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2236 mso-hansi-theme-font:minor-latin'>0::dAy:0 for O(1)</span></b> from the dialog 2237 box. Notice the use of a filter to shorten the list. This will fix the shift 2238 along y for the <span class=GramE>O(</span>1) atom.</p> 2239 2240 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2241 id="Picture_x0020_67" o:spid="_x0000_i1037" type="#_x0000_t75" style='width:468pt; 2242 height:248.25pt;visibility:visible;mso-wrap-style:square'> 2243 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image098.png" o:title=""/> 2244 </v:shape><![endif]--><![if !vml]><img width=624 height=331 2245 src="Charge%20Flipping%20-%20sucrose_files/image098.png" v:shapes="Picture_x0020_67"><![endif]></span></p> 2235 2246 2236 2247 <p class=MsoNormal>Press <b style='mso-bidi-font-weight:normal'><span … … 2240 2251 2241 2252 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2242 id="Picture_x0020_ 27" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:225pt;2243 height: 187.5pt;visibility:visible;mso-wrap-style:square'>2244 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image0 34.png" o:title=""/>2245 </v:shape><![endif]--><![if !vml]><img width= 300 height=2502246 src="Charge%20Flipping%20-%20sucrose_files/image 034.png" v:shapes="Picture_x0020_27"><![endif]></span></p>2253 id="Picture_x0020_68" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:468pt; 2254 height:213.75pt;visibility:visible;mso-wrap-style:square'> 2255 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image099.png" o:title=""/> 2256 </v:shape><![endif]--><![if !vml]><img width=624 height=285 2257 src="Charge%20Flipping%20-%20sucrose_files/image100.png" v:shapes="Picture_x0020_68"><![endif]></span></p> 2247 2258 2248 2259 <p class=MsoNormal>Do <b style='mso-bidi-font-weight:normal'><span … … 2288 2299 <p class=MsoNormal>Do <b style='mso-bidi-font-weight:normal'><span 2289 2300 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2290 mso-hansi-theme-font:minor-latin'>Edit/Insert H atoms</span></b> from the Atoms 2291 menu; a Distance Angle Controls popup will appear. You can change radii and 2292 Bond search factor if needed (rarely). Press <b style='mso-bidi-font-weight: 2293 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2294 minor-latin;mso-hansi-theme-font:minor-latin'>Ok</span></b>. A new popup window 2295 will appear.<br> 2301 mso-hansi-theme-font:minor-latin'>Edit Atoms/On selected atoms 2302 /<span 2303 class=SpellE>Calc</span> H atoms</span></b> from the menu; a Distance Angle 2304 Controls popup will appear. You can change radii and Bond search factor if 2305 needed (rarely). Press <b style='mso-bidi-font-weight:normal'><span 2306 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2307 mso-hansi-theme-font:minor-latin'>Ok</span></b>. A new popup window will 2308 appear.<br> 2296 2309 <span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_50" 2297 2310 o:spid="_x0000_i1035" type="#_x0000_t75" style='width:300pt;height:363.75pt; … … 2315 2328 2316 2329 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2317 id="Picture_x0020_51" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:362.25pt; 2318 height:312pt;visibility:visible;mso-wrap-style:square'> 2319 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image036.png" o:title="" 2320 croptop="15482f" cropbottom="12608f" cropleft="37236f" cropright="13314f"/> 2321 </v:shape><![endif]--><![if !vml]><img width=483 height=416 2322 src="Charge%20Flipping%20-%20sucrose_files/image037.jpg" v:shapes="Picture_x0020_51"><![endif]></span></p> 2330 id="Picture_x0020_69" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:400.5pt; 2331 height:346.5pt;visibility:visible;mso-wrap-style:square'> 2332 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image101.png" o:title=""/> 2333 </v:shape><![endif]--><![if !vml]><img width=534 height=462 2334 src="Charge%20Flipping%20-%20sucrose_files/image102.png" v:shapes="Picture_x0020_69"><![endif]></span></p> 2323 2335 2324 2336 <p class=MsoNormal>These hydrogen atoms will better describe the scattering … … 2332 2344 2333 2345 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2334 id="Picture_x0020_52" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:363pt; 2335 height:311.25pt;visibility:visible;mso-wrap-style:square'> 2336 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image038.png" o:title="" 2337 croptop="15482f" cropbottom="12698f" cropleft="37236f" cropright="13252f"/> 2338 </v:shape><![endif]--><![if !vml]><img width=484 height=415 2339 src="Charge%20Flipping%20-%20sucrose_files/image039.jpg" v:shapes="Picture_x0020_52"><![endif]></span></p> 2346 id="Picture_x0020_70" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:369.75pt; 2347 height:319.5pt;visibility:visible;mso-wrap-style:square'> 2348 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image103.png" o:title=""/> 2349 </v:shape><![endif]--><![if !vml]><img width=493 height=426 2350 src="Charge%20Flipping%20-%20sucrose_files/image104.png" v:shapes="Picture_x0020_70"><![endif]></span></p> 2340 2351 2341 2352 <p class=MsoNormal>Because the C-atoms have probably moved; the H-atoms (which 2342 were fixed) are now no longer in their optimal locations. From the Atom tab 2343 menu, do <b style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2344 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Edit/ Update 2345 H atoms</span></b>. This will shift their positions slightly. Repeat <b 2353 were fixed) are now no longer in their optimal locations. From the menu, do <span 2354 class=GramE><b style='mso-bidi-font-weight:normal'><span style='font-family: 2355 "Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-hansi-theme-font: 2356 minor-latin'>Edit</span></b></span><b style='mso-bidi-font-weight:normal'><span 2357 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2358 mso-hansi-theme-font:minor-latin'> Atoms/ <span class=SpellE>pdate</span> H 2359 atoms</span></b>. This will shift their positions slightly. Repeat <b 2346 2360 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2347 2361 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Calculate/Refine</span></b> … … 2419 2433 croptop="10982f" cropbottom="17558f" cropleft="37484f" cropright="13065f"/> 2420 2434 </v:shape><![endif]--><![if !vml]><img width=483 height=411 2421 src="Charge%20Flipping%20-%20sucrose_files/image 041.jpg" v:shapes="Picture_x0020_31"><![endif]></span></p>2435 src="Charge%20Flipping%20-%20sucrose_files/image105.jpg" v:shapes="Picture_x0020_31"><![endif]></span></p> 2422 2436 2423 2437 <p class=MsoNormal>What is drawn here are green (& red for negative) dots … … 2426 2440 Recall that the refinement was just done without any H-atoms on the oxygen 2427 2441 atoms; it will make the best fit compensating for the missing H-atoms by 2428 displacing the O atoms in the direction of the missing H-atoms. To add the OH atoms2429 do the following:</p>2442 displacing the O atoms in the direction of the missing H-atoms. To add the OH 2443 atoms do the following:</p> 2430 2444 2431 2445 <p class=MsoListParagraph style='margin-left:.75in;text-indent:-.25in; … … 2452 2466 </span></span></span><![endif]>Do <b style='mso-bidi-font-weight:normal'><span 2453 2467 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2454 mso-hansi-theme-font:minor-latin'>Edit/Insert H atoms</span></b> from the menu; 2455 a Distance Angle Controls popup will appear. You can change radii and Bond 2456 search factor if needed (rarely). Press <b style='mso-bidi-font-weight:normal'><span 2468 mso-hansi-theme-font:minor-latin'>Edit Atoms/On selected atoms 2469 /<span 2470 class=SpellE>Calc</span> H atoms</span></b> from the menu; a Distance Angle 2471 Controls popup will appear. You can change radii and Bond search factor if 2472 needed (rarely). Press <b style='mso-bidi-font-weight:normal'><span 2457 2473 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2458 2474 mso-hansi-theme-font:minor-latin'>Ok</span></b>. A new popup window will appear</p> … … 2474 2490 <p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p> 2475 2491 2476 <p class=MsoNormal style='margin-left:.5in'>These OH hydrogens are found by 2477 finding the highest point in the delta-F map for all possible orientations of 2478 this bond at a fixed angle (109.5°). The new hydrogen atoms are named in sequence 2479 and are appended to the end of the Atom list.</p> 2480 2481 <p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p> 2492 <p class=MsoNormal style='margin-left:.5in'>These OH hydrogens are found by finding 2493 the highest point in the delta-F map for all possible orientations of this bond 2494 at a fixed angle (109.5°). The new hydrogen atoms are inserted in the Atom list 2495 immediately after the O-atom they are bound to and they are named accordingly</p> 2482 2496 2483 2497 <p class=MsoNormal>Do the set of <b style='mso-bidi-font-weight:normal'><span 2484 2498 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2485 mso-hansi-theme-font:minor-latin'>Calculate/Refine, Edit /Update H atoms</span></b>2499 mso-hansi-theme-font:minor-latin'>Calculate/Refine, Edit Atoms/Update H atoms</span></b> 2486 2500 at least twice to finish this stage in the structure analysis; end with a <b 2487 2501 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; … … 2491 2505 2492 2506 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2493 id="Picture_x0020_ 40" o:spid="_x0000_i1030" type="#_x0000_t75" style='width:525pt;2494 height: 450pt;visibility:visible;mso-wrap-style:square'>2495 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image 043.png" o:title=""/>2496 </v:shape><![endif]--><![if !vml]><img width= 700 height=6002497 src="Charge%20Flipping%20-%20sucrose_files/image 043.png" v:shapes="Picture_x0020_40"><![endif]></span></p>2507 id="Picture_x0020_71" o:spid="_x0000_i1030" type="#_x0000_t75" style='width:407.25pt; 2508 height:348.75pt;visibility:visible;mso-wrap-style:square'> 2509 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image106.png" o:title=""/> 2510 </v:shape><![endif]--><![if !vml]><img width=543 height=465 2511 src="Charge%20Flipping%20-%20sucrose_files/image107.png" v:shapes="Picture_x0020_71"><![endif]></span></p> 2498 2512 2499 2513 <h2>Step 6: Final refinement</h2> … … 2519 2533 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2520 2534 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Data</span></b> 2521 tab; make sure the <b style='mso-bidi-font-weight:normal'><span 2522 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2523 mso-hansi-theme-font:minor-latin'>Show</span></b> box is checked. Check the 2524 boxes for both <span class=SpellE><b style='mso-bidi-font-weight:normal'><span 2525 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2526 mso-hansi-theme-font:minor-latin'>Cryst</span></b></span><b style='mso-bidi-font-weight: 2527 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2528 minor-latin;mso-hansi-theme-font:minor-latin'>. <span class=GramE>size</span></span></b> 2529 and <span class=SpellE><b style='mso-bidi-font-weight:normal'><span 2530 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2531 mso-hansi-theme-font:minor-latin'>microstrain</span></b></span>.</p> 2532 2533 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2534 id="Picture_x0020_41" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:480pt; 2535 height:339pt;visibility:visible;mso-wrap-style:square'> 2536 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image044.png" o:title=""/> 2537 </v:shape><![endif]--><![if !vml]><img width=640 height=452 2538 src="Charge%20Flipping%20-%20sucrose_files/image044.png" v:shapes="Picture_x0020_41"><![endif]></span></p> 2535 tab. Check the boxes for both <span class=SpellE><b style='mso-bidi-font-weight: 2536 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2537 minor-latin;mso-hansi-theme-font:minor-latin'>Cryst</span></b></span><b 2538 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2539 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>. <span 2540 class=GramE>size</span></span></b> and <span class=SpellE><b style='mso-bidi-font-weight: 2541 normal'><span style='font-family:"Calibri",sans-serif;mso-ascii-theme-font: 2542 minor-latin;mso-hansi-theme-font:minor-latin'>microstrain</span></b></span>.</p> 2543 2544 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2545 id="Picture_x0020_72" o:spid="_x0000_i1029" type="#_x0000_t75" style='width:468pt; 2546 height:279.75pt;visibility:visible;mso-wrap-style:square'> 2547 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image108.png" o:title=""/> 2548 </v:shape><![endif]--><![if !vml]><img width=624 height=373 2549 src="Charge%20Flipping%20-%20sucrose_files/image109.png" v:shapes="Picture_x0020_72"><![endif]></span></p> 2539 2550 2540 2551 <p class=MsoNormal>Do a <b style='mso-bidi-font-weight:normal'><span … … 2547 2558 2548 2559 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2549 id="Picture_x0020_ 42" o:spid="_x0000_i1028" type="#_x0000_t75" style='width:480pt;2550 height: 334.5pt;visibility:visible;mso-wrap-style:square'>2551 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image 045.png" o:title=""/>2552 </v:shape><![endif]--><![if !vml]><img width=6 40 height=4462553 src="Charge%20Flipping%20-%20sucrose_files/image 045.png" v:shapes="Picture_x0020_42"><![endif]></span></p>2560 id="Picture_x0020_73" o:spid="_x0000_i1028" type="#_x0000_t75" style='width:468pt; 2561 height:279.75pt;visibility:visible;mso-wrap-style:square'> 2562 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image110.png" o:title=""/> 2563 </v:shape><![endif]--><![if !vml]><img width=624 height=373 2564 src="Charge%20Flipping%20-%20sucrose_files/image111.png" v:shapes="Picture_x0020_73"><![endif]></span></p> 2554 2565 2555 2566 <p class=MsoNormal>Next select <b style='mso-bidi-font-weight:normal'><span … … 2561 2572 style='font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin; 2562 2573 mso-hansi-theme-font:minor-latin'> model</span></b>; this is the Stephens 2563 phenomenological model for <span class=SpellE>microstrain</span> which has 9 terms2564 for monoclinic structures. Check all the boxes for it and press <b2574 phenomenological model for <span class=SpellE>microstrain</span> which has 9 2575 terms for monoclinic structures. Check all the boxes for it and press <b 2565 2576 style='mso-bidi-font-weight:normal'><span style='font-family:"Calibri",sans-serif; 2566 2577 mso-ascii-theme-font:minor-latin;mso-hansi-theme-font:minor-latin'>Reset</span></b>. … … 2569 2580 2570 2581 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2571 id="Picture_x0020_ 55" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:402pt;2572 height:3 75pt;visibility:visible;mso-wrap-style:square'>2573 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image 046.png" o:title=""/>2574 </v:shape><![endif]--><![if !vml]><img width= 536 height=5002575 src="Charge%20Flipping%20-%20sucrose_files/image 046.png" v:shapes="Picture_x0020_55"><![endif]></span></p>2582 id="Picture_x0020_74" o:spid="_x0000_i1027" type="#_x0000_t75" style='width:468pt; 2583 height:305.25pt;visibility:visible;mso-wrap-style:square'> 2584 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image112.png" o:title=""/> 2585 </v:shape><![endif]--><![if !vml]><img width=624 height=407 2586 src="Charge%20Flipping%20-%20sucrose_files/image113.png" v:shapes="Picture_x0020_74"><![endif]></span></p> 2576 2587 2577 2588 <p class=MsoNormal>Do a <b style='mso-bidi-font-weight:normal'><span … … 2591 2602 2592 2603 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2593 id="Picture_x0020_ 56" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:402pt;2594 height:3 75pt;visibility:visible;mso-wrap-style:square'>2595 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image 047.png" o:title=""/>2596 </v:shape><![endif]--><![if !vml]><img width= 536 height=5002597 src="Charge%20Flipping%20-%20sucrose_files/image 047.png" v:shapes="Picture_x0020_56"><![endif]></span></p>2598 2599 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2600 id="Picture_x0020_ 58" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:525pt;2601 height: 450pt;visibility:visible;mso-wrap-style:square'>2602 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image 048.png" o:title=""/>2603 </v:shape><![endif]--><![if !vml]><img width= 700 height=6002604 src="Charge%20Flipping%20-%20sucrose_files/image 048.png" v:shapes="Picture_x0020_58"><![endif]></span></p>2604 id="Picture_x0020_75" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:468pt; 2605 height:305.25pt;visibility:visible;mso-wrap-style:square'> 2606 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image114.png" o:title=""/> 2607 </v:shape><![endif]--><![if !vml]><img width=624 height=407 2608 src="Charge%20Flipping%20-%20sucrose_files/image115.png" v:shapes="Picture_x0020_75"><![endif]></span></p> 2609 2610 <p class=MsoNormal><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape 2611 id="Picture_x0020_76" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:357pt; 2612 height:378.75pt;visibility:visible;mso-wrap-style:square'> 2613 <v:imagedata src="Charge%20Flipping%20-%20sucrose_files/image116.png" o:title=""/> 2614 </v:shape><![endif]--><![if !vml]><img width=476 height=505 2615 src="Charge%20Flipping%20-%20sucrose_files/image117.png" v:shapes="Picture_x0020_76"><![endif]></span></p> 2605 2616 2606 2617 <p class=MsoNormal>This completes the exercise.</p> -
Tutorials/CFsucrose/Charge Flipping - sucrose_files/filelist.xml
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Tutorials/CFsucrose/Charge Flipping - sucrose_files/item0054.xml
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Tutorials/CFsucrose/Charge Flipping - sucrose_files/props055.xml
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