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yytsnake

至尊木虫 (职业作家)

[求助] [求助]FLACK参数为负该如何解决?

各位大侠,学习晶体解析遇到一问题不知如何解决,还望前辈们指教。
精修完毕,结果提示为:
Checking absolute structure...
Bijvoet pair analysis using Gaussian distribution
Bijvoet pairs (all): 5096
Bijvoet pairs (used): 5096
Bijvoet pairs coverage: 0.75
G: 1.045(6)
P2(true): 1.000
P3(true): 1.000
P3(false): 0.000
P3(racemic twin): 0.000
Hooft y: -0.022(3)
Flack x: -0.019(6)
OK
结构中有手性原子为S型,审稿人提出FLACK为负不合理,让重解。
请教大侠们,这该如何解决?
谢谢!
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yytsnake

至尊木虫 (职业作家)

再顶一下。
影响FLACK的因素有哪些?除了空间群指认错误外,与原子类型的指认是否有关?这是个稀土配合物,是否金属的指定也有影响?
2楼2011-08-05 09:58:59
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