Acta Cryst. (2008). E64, o1971  [ doi:10.1107/S160053680802802X ]

(4-tert-Butylphenyl)acetic acid

B.-X. Liu, Y.-P. Yu and D.-J. Xu

Abstract: In the title compound, C₁₂H₁₆O₂, the plane of the carboxylic acid group is almost perpendicular to the benzene ring [dihedral angle 80.9 (3)°] and the tert-butyl unit is disordered over two sets of sites in a 0.503 (6):0.497 (6) ratio. In the crystal structure, centrosymmetric dimers arise from pairs of O-HO hydrogen bonds involving the carboxylic acid groups.

Online 20 September 2008

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