Acta Cryst. (2008). E64, o1869  [ doi:10.1107/S1600536808027542 ]

2,6-Dimethyl-4-m-tolylcyclohex-3-enecarboxylic acid

S. Xie, H. J. Stein and M. Pink

Abstract: The title compound, C₁₆H₂₀O₂, was synthesized to study the hydrogen-bonding interaction of the two enantiomers in the solid state. The racemate is made up of carboxylic acid RS dimers. Intermolecular O-HO hydrogen bonds produce centrosymmetric R₂²(8) rings which dimerize the two chiral enantiomers through their carboxyl groups. The chirality of this compound is generated by the presence of the double bond in the cyclohexene ring and a chiral axis due to the meta-methyl substituent on the aromatic ring.

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