Acta Cryst. (2006). E62, o2435-o2437  [ doi:10.1107/S1600536806018022 ]

1-Oxoindan-6-carboxylic acid: catemeric hydrogen bonding in an aromatic -keto acid

R. A. Lalancette, E. M. Kikolski and H. W. Thompson

Abstract: The title compound, C₁₀H₈O₃, aggregates in the crystal structure as catemers, whose hydrogen bonding progresses from the carboxyl to the ketone of a neighboring screw-related molecule along the b axis [OO = 2.6481 (12) Å and O-HO = 169°]. Four hydrogen-bonding chains in centrosymmetric pairs pass through the cell in the b-axis direction. Two intermolecular C-HO=C close contacts are found, involving both the ketone and acid functions.

Online 24 May 2006

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