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whb8608105022

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СµÜͶµÄ¾§Ìåѧ±¨E£¬±à¼­¸øµÄÐ޸Ļظ´£¬ÓÐÁ½¸öû¿´¶®£¬Çë½Ì¸ßÊÖ°ïÖú£¡
ÎÊÌâÒ»£ºYour molecule contains NO anomalous scatterers, i.e. atoms with Z>13.
So you can not refine the Flack parameter. Moreover, you have averaged the
Friedel pairs before the final refinement - and that is correct!
However, you should mention it in Experimental section.
As example:
_publ_section_exptl_refinement
;
...
Due to the absence of any significant
anomalous scatterers in the molecule, the ???? ( - how many ?) Friedel pairs
were merged before the final refinement.
;
Also you need to use the following lines in the CIF:
_refine_ls_abs_structure_details   ?
_refine_ls_abs_structure_Flack    ?
ÎÒ³ýÁ˰´ÕÕËûµÄÒªÇóÔÚCIFÀï×ö³ö£¨_refine_ls_abs_structure_details   ?
_refine_ls_abs_structure_Flack    ?£©Õâ¸öÐÞ¸ÄÍ⣬»¹µÃÔÚ_publ_section_exptl_refinement²¹³äÉÏ£¨???? Friedel pairs were merged before the final refinement.£©µ«ÊÇÎÒµÄԭʼÊý¾ÝÒѾ­¶ªÊ§£¬Õâ¸öÊýÄ¿ÒѾ­ÎÞ·¨Ëã³ö£¬ÎÒ¸ÃÔõô°ì£¿ÄÜÏò±à¼­ËµÃ÷Â𣿻¹ÊDz»ÐèҪ˵°¡¡£
µÚ¶þÎÊÌ⣺What about the positioning of hydroxy H atoms O2A and O3A.
Obviously, one of them has to be re-positioned to be involved
in intermolecular hydrogen bond proved by short intermolecular
distance O2...O3(*) of 2.752(4) \%A. So you will have one H atom
at the same position, and another - in a new position which allows
intermolecular O--H...O hydrogen bonding without Alerts A.
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whb8608105022(½ð±Ò+1): 2010-07-12 23:10:29
yunruirui(½ð±Ò+2):лл½»Á÷£¬Ï£Íû³£À´¡£ 2010-07-13 08:23:39
µÚÒ»¸öÎÊÌâ±à¼­ËµµÄºÜÇå³þ£¬²¢ÇÒÄãÒѾ­×ö¹ýƽ¾ùÁË£¬Ö»ÊÇÐèÒªÔÚcifµÄ_publ_section_exptl_refinementÖмÓÈë˵Ã÷¼´¿É¡£
_publ_section_exptl_refinement
;
...
Due to the absence of any significant
anomalous scatterers in the molecule, the XXXX Friedel pairs
were merged before the final refinement.
;
ͬʱcifÖÐÌí¼ÓÒÔÏÂÁ½ÐУº
_refine_ls_abs_structure_details   ?
_refine_ls_abs_structure_Flack    ?

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µÚ¶þÎÊÌâÊÇÓÐAlerts A£¬¾ÍÊÇ˵O2A and O3AÉϵÄÒ»¸öÇâÔ­×Ӽӵò»¶Ô£¬Äãɾ³ýºóÖØÐ¼ӾͿÉÒÔÁË£¬¼ÒµÄʱºòÒ»¶¨Òª°´ÕÕÇâ¼üµÄ·½Ïò¼Ó£¬·ñÔò»¹»á³ö´í¡£
2Â¥2010-07-12 21:06:38
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yunruirui:лл½»Á÷£¬Ï£Íû³£À´¡£ 2010-07-13 08:23:54
ԭʼÊý¾ÝÒѾ­¶ªÊ§? ÄÇÄãÏÖÔÚÓÐÄÄЩÊý¾Ý°¡£¿
3Â¥2010-07-12 21:07:54
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whb8608105022

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ÒýÓûØÌû:
Originally posted by whb8608105022 at 2010-07-12 13:18:36:
СµÜͶµÄ¾§Ìåѧ±¨E£¬±à¼­¸øµÄÐ޸Ļظ´£¬ÓÐÁ½¸öû¿´¶®£¬Çë½Ì¸ßÊÖ°ïÖú£¡
ÎÊÌâÒ»£ºYour molecule contains NO anomalous scatterers, i.e. atoms with Z>13.
So you can not refine the Flack parameter. Moreo ...

ллÕâλ´ó¸ç
µÚÒ»¸öÎÊÌâÎÒÏëËã³öÄǸöÊýÄ¿£¬µ«ÊÇԭʼÊý¾Ý¶ªÊ§£¬ÊÖÍ·ÉÏÊDZðÈËÐ޸ĹýÒ»±éµÄÊý¾Ý£¬ËùÒÔ°´ÕÕÕâ¸öÊý¾ÝËã³öÀ´£¬Ö»ÓÐ2¸öFriedel pairs ¡£»á²»»áÌ«ÉÙÁË£¿
µÚ¶þ¸öÎÊÌ⣬ÎÒµÚÒ»´ÎÌύʱÓÐA¾¯±¨£¬Í˻غó£¬ÎÒÓÖÖØÐÂÐÞÁËһϣ¬Ã»ÓÐA¾¯±¨²ÅµÚ¶þ´ÎÌá½»µÄ£¬ËùÒÔ£¬ÎҲ²â±à¼­µÄÒâ˼ÊÇÎÊÎÒÄǸöÇâÐÞµ½ÄÄÈ¥ÁË»¹ÊDZðµÄ°¡£¿
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4Â¥2010-07-12 23:09:57
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2¸öFriedel pairs ¿ÉÄܲ»¶Ô
µÚ¶þÎÊÌâÊÇO2A and O3AÉϵÄÒ»¸öÇâÔ­×Ӽӵò»¶Ô£¬Äãɾ³ýºóÖØÐ¼ӾͿÉÒÔÁË
5Â¥2010-07-14 14:36:38
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6Â¥2010-07-15 14:39:34
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