Polymorphs of 1,1-bis(4-hydroxyphenyl) cyclohexane and multiple Z′ crystal structures by melt and sublimation crystallization

被引:68
|
作者
Sarma, Bipul [1 ]
Roy, Saikat [1 ]
Nangia, Ashwini [1 ]
机构
[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India
关键词
D O I
10.1039/b610323e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Close packing conflict in a metastable polymorph of the pure title host (Z' = 2, melt crystal 1m) is resolved in the stable form (Z' = 1, sublimed crystal 1s) as O-H center dot center dot center dot O hydrogen bond changes to O-H center dot center dot center dot pi interaction. Melt crystallization and sublimation show a greater percentage of high Z' structures in CSD statistics.
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页码:4918 / 4920
页数:3
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