Acta Cryst. (2009). E65, o1217  [ doi:10.1107/S1600536809016468 ]

2,6-Bis(trifluoromethyl)benzoic acid

J. M. Tobin and J. D. Masuda

Abstract: The title compound, C₉H₄F₆O₂, contains two molecules in the asymmetric unit, one of which exhibits disorder in both of its trifluoromethyl groups. The dihedral angles between the benzene ring and the carboxyl group are 71.5 (2) and 99.3 (2)° in the two independent molecules. The compound exhibits a catemeric structure resulting from intermolecular O-HO hydrogen bonding between the carboxyl groups.

Online 7 May 2009

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