Conformation of hydrogen-bonded dimeric o-methyl-substituted benzoic acids

被引：2
|
作者：
Glinski, Marek [1 ]
Wilczkowska, Ewa [1 ]
Madura, Izabela D. [1 ]
Zachara, Janusz [1 ]
机构：
[1] Warsaw Univ Technol, Fac Chem, PL-00664 Warsaw, Poland
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2008年 / 64卷
关键词：
D O I：
10.1107/S0108270108005799
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Molecules of 2,4-dimethyl-benzoic acid, C9H10O2, form typical centrosymmetric hydrogen-bonded dimers. The carboxyl group is twisted with respect to the benzene ring and the methyl group in the ortho position shows evasive in-plane splaying. The relation between the in-plane splaying and the twist angle of the carboxyl group for various ortho-substituted dimeric derivatives of benzoic acid is presented. It shows how the steric strains are released depending on the numbers and positions of the substituents. © 2008 International Union of Crystallography.
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页码：O208 / O210
页数：3
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