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A redetermination of 4-chloro-3-nitro­benzoic acid

✍ Scribed by Ishida, Hiroyuki ;Fukunaga, Takeo

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
657 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title compound, C 7 H 4 ClNO 4 , the molecules form centrosymmetric dimers through OÐHÁ Á ÁO hydrogen bonds. The dimers are connected by CÐHÁ Á ÁO hydrogen bonds to form molecular tapes. Disorder of the H atom in the OÐ HÁ Á ÁO hydrogen bond is suggested.

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In the crystal structure of the title 1:2 cocrystal, C~10~H~8~N~2~·2C~7~H~4~ClNO~4~, the two components are held together by short O—H...N hydrogen bonds. The pyridine rings of the bipyridyl molecule are twisted by 27.90 (5)° with respect to each other. The 1:2 units are connected by C—H...O hydroge