Crystal structures of sulfathiazole polymorphs in the temperature range 100–295 K: A comparative analysis

被引：0
|
作者：
T. N. Drebushchak
E. V. Boldyreva
M. A. Mikhailenko
机构：
[1] Russian Academy of Sciences,Institute of Solid State Chemistry and Mechanochemistry, Siberian Division
[2] Research and Education Center for Molecular Design and Ecologically Safe Technologies,Novosibirsk State University
来源：
Journal of Structural Chemistry | 2008年 / 49卷
关键词：
polymorphism; hydrogen bonding; sulfathiazole; single crystal X-ray diffraction; low temperatures; thermal expansion;
D O I：
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学科分类号：
摘要：
The response of four polymorph modifications of sulfathiazole C9H9N3O2S2 to variation of temperature was examined in the range 295–100 K by single crystal X-ray diffraction. No phase transitions occur in this temperature range; all the structures exhibit anisotropic contraction. The metastable sulfathiazole modification I is drastically different from the other modifications (II, III, and IV) in the anisotropy of structure distortions and changes in the intra-and intermolecular geometry, although bulk thermal expansion is virtually similar for all polymorphs within the temperature range studied.
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页码：84 / 94
页数：10
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