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gaofenzi895

新虫 (小有名气)

[交流] CIF审稿意见求助?

投了一篇SCI文章,其中 关于CIF部分有如下审稿意见:
In particular, the Friedel pairs should be merged and the refinement repeated thereafter. The short H-H contacts are probably due to some sort of tert-butyl disorder which unfortuantely has not been sddressed in the Exp.Part. Is it reasonable to include such hydrogen with split occupancies in the refinement? Probably also the necessity for restraints orininates from the disorder? Please explain.

这什么意思啊?问题大么?怎么改啊?谢谢.
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xi2004

至尊木虫 (职业作家)

关于"In particular, the Friedel pairs should be merged and the refinement repeated thereafter."

PLAton 回答如下.  



PLAT024

--------------------------------------------------------------------------------
PLAT024 Type_4 Check for required Friedel pair averaging Z<=Si
--------------------------------------------------------------------------------

Averaging of Friedel pairs is strongly advised when indicated by a
large su on the Flack parameter. Large su values indicate that the
anomalous scattering power is too small in combination with the data
quality at hand to merit refinement with a non-averaged dataset. This
will generally be the case with MoKa datasets for structures containing
atoms not heavier than Si. The value of the Flack parameter will be
largely meaningless anyway for large su values.

Use MERG 4 in case of refinement with the SHELXL97 program.
Non-compliance with the above for valid scientific reasons should be
discussed in detail in the experimental section of the paper.


--------------------------------------------------------------------------------
xi2004-emuch@163.com
7楼2008-09-21 00:09:14
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xi2004

至尊木虫 (职业作家)

又见无序, 头大.

你的 tert-butyl 是不是无序? 氢怎么加的. 先自己用CIFcheck check一下, 看看为何H-H太近.
还有多余的点要Merged一下.

解决是可以解决的, 估计, 但稍麻烦.
xi2004-emuch@163.com
2楼2008-09-20 17:37:50
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xi2004

至尊木虫 (职业作家)

这几天网络慢, 重发了, 不好意思.
xi2004-emuch@163.com
3楼2008-09-20 17:38:08
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gaofenzi895

新虫 (小有名气)

麻烦问下,
PLAT220_ALERT_2_A Large Non-Solvent    C     Ueq(max)/Ueq(min) ...       5.75 Ratio
--------------------------------------------------------------------------------Alert level B
PLAT230_ALERT_2_B Hirshfeld Test Diff for    C11    --  C12_a   ..      10.61 su   
PLAT230_ALERT_2_B Hirshfeld Test Diff for    C11    --  C13_a   ..      10.62 su   
PLAT230_ALERT_2_B Hirshfeld Test Diff for    C12    --  C11_a   ..      10.59 su   
PLAT230_ALERT_2_B Hirshfeld Test Diff for    C13    --  C11_a   ..      10.62 su   
PLAT024_ALERT_4_B Merging of Friedel Pairs is STRONGLY Indicated .          !
这些都什么错误啊?
4楼2008-09-20 18:48:54
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