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Acta Cryst. (2013). E69, o1120  [ doi:10.1107/S1600536813016310 ]

2-Amino-4-methylpyridinium 3-hydroxybenzoate

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

Abstract: In the title salt, C6H9N2+·C7H5O3-, the anion is essentially planar, with a dihedral angle of 2.72 (17)° between the benzene ring and the carboxylate group. In the crystal, the anions are connected by O-H...O hydrogen bonds, forming a 41 helical chain along the c axis. The protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxylate O atoms of the anion via a pair of N-H...O hydrogen bonds with an R22(8) ring motif. The ion pairs are further connected via another N-H...O hydrogen bond, resulting in a three-dimensional network.

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