Ji-cai Quan, Hong-Shun Sun
Dec 8, 2012
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound, C7H2ClF3O2, was prepared by the chlorination of 3-amino-2,4,5-trifluorobenzoic 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 molecules into typical centrosymmetric carboxylic acid dimers. These dimers are arranged into sheets parallel to (-103).