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wjy1980

铁杆木虫 (著名写手)

[求助] 请高手根据意见帮忙精修晶体数据 已有1人参与

本人对晶体解析一点儿都不懂,最近投的文章有如下的修改意见,请高手根据意见帮忙精修cif文件
1. The unusual U(H) = 1.75 Ueq(O) for water hydrogens is caused by malplaced atoms in the ins file:

C13 1 0.733264 0.869525 0.667511 11.00000 0.03971 0.04136 =
0.04872 -0.02070 -0.00202 -0.01840
H3A 2 0.813456 0.458071 0.653531 11.00000 -1.50000
H3B 2 0.949181 0.532436 0.636467 11.00000 -1.50000
so the hydrogen atoms isotropical parameters are U(H) = 1.5 Ueq(C13). Move atoms H13A and H13B directly after atom O3 and re-refine, update the cif and upload it as well as the structure factor file fcf.

2. The restraints imposed to water molecule hydrogens by commands
DFIX 0.85 0.01 H3a O3 H3b O3 and DFIX 1.39 0.01 H3a H3b are causing no rigid model restraints, but restraints to O-H distance 0.85(1)\%A and H...H distance restraint 1.39(1)\%A with and additional contraints U(H) = 1.5 Ueq(O3).
有应助者,请留邮箱或者站内联系,谢谢!
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wjy1980: 金币+50, ★★★★★最佳答案, 非常感谢您的帮助!您的经验会越来越丰富的! 2015-01-25 17:04:04
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