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. 2013 Jan 1;69(Pt 1):o30.
doi: 10.1107/S1600536812049446. Epub 2012 Dec 8.

3-Chloro-2,4,5-trifluoro-benzoic acid

Jing Quan  1 , Hong-Shun Sun
Affiliations

3-Chloro-2,4,5-trifluoro-benzoic acid

Jing Quan et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C7H2ClF3O2, was prepared by the chlorination of 3-amino-2,4,5-trifluoro-benzoic acid. The carboxyl group is twisted relative to the benzene ring by 6.8 (1)°. In the crystal, pairs of O-H⋯O hydrogen bonds link mol-ecules into typical centrosymmetric carb-oxy-lic acid dimers. These dimers are arranged into sheets parallel to (-103).

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Figures

Fig. 1.
Fig. 1.
The molecular structure of (I), showing the atom-numbering scheme and displacement ellipsoids at the 30% probability level.
Fig. 2.
Fig. 2.
A packing diagram of (I). Intermolecular hydrogen bonds are shown as dashed lines.
See this image and copyright information in PMC

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