Acta Cryst. (2001). E57, o1224-o1226  [ doi:10.1107/S1600536801018682 ]

2,3-Dihydroxybenzoic acid

N. Okabe and H. Kyoyama

Abstract: The title compound, C₇H₆O₄, crystallizes with two independent molecules in the asymmetric unit and forms a two-dimensional structure in the solid state. This is facilitated by a network of hydrogen-bonding interactions. There are two intramolecular hydrogen bonds, one between adjacent hydroxyl groups and the other between between the hydroxyl group and the carbonyl O atom. The crystal structure is stabilized both by carboxylic acid dimer formation and by interactions between the carboxyl and hydroxyl groups.

Online 24 November 2001

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