Acta Cryst. (2006). E62, o4837-o4839  [ doi:10.1107/S1600536806040062 ]

A second orthorhombic polymorph of 5-nitroisophthalic acid monohydrate

M. I. Saleh, W.-T. Tham, R. Adnan, E. Kusrini, S.-L. Ng and H.-K. Fun

Abstract: In the title compound, C₈H₅NO₆·H₂O, the benzene ring and one of the two carboxylic acid groups are nearly coplanar, whereas the other carboxylic acid group and the nitro group are slightly twisted away from the benzene ring. The molecules are connected by C-HO interactions involving the nitro groups and by O-HO hydrogen bonds between the water molecules and the carboxylic acid groups, forming a two-dimensional network parallel to the (001) plane.

Online 4 October 2006

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