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Acta Cryst. (2013). E69, o537-o538
[ doi:10.1107/S160053681300665X ]

2-Amino-5-bromopyridinium 5-chloro-2-hydroxybenzoate

K. Thanigaimani, N. C. Khalib, S. Arshad and I. A. Razak

Abstract: In the 5-chlorosalicylate anion of the title salt, C5H6BrN2+·C7H4ClO3-, an intramolecular O-H...O hydrogen bond with an S(6) graph-set motif is formed, so that the anion is essentially planar with a dihedral angle of 1.3 (5)° between the benzene ring and the carboxylate group. In the crystal, the protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxylate O atoms via a pair of N-H...O hydrogen bonds, forming an R22(8) ring motif. The crystal structure also features N-H...O and weak C-H...O interactions, resulting in a layer parallel to the (10-1) plane.


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