Acta Cryst. (2003). E59, o316-o318  [ doi:10.1107/S1600536803002903 ]

Trichloroacetic acid at 105  K

K. Rajagopal, A. Mostad, R. V. Krishnakumar, M. Subha Nandhini and S. Natarajan

Abstract: In the crystal structure of the title compound, Cl₃CCOOH or C₂HCl₃O₂, molecules form centrosymmetric pairs leading to centrosymmetric dimers through strong O-HO hydrogen bonds. In the absence of other strong intermolecular interactions, the ClO [3.029  (1)  Å] and ClCl [3.612  (1)  Å] interactions presumably play an important role in the stabilization of the crystal structure.

Online 14 February 2003

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