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Acta Cryst. (2013). E69, o1118-o1119  [ doi:10.1107/S1600536813016322 ]

2-Amino-5-methylpyridinium 3-hydroxypyridine-2-carboxylate

A. Farhadikoutenaei, K. Thanigaimani, S. Arshad and I. A. Razak

Abstract: In the 3-hydroxypicolinate anion of the title salt, C6H9N2+·C6H4NO3-, 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 9.55 (9)° between the pyridine ring and the carboxylate group. In the crystal, the cations and anions are linked via N-H...O hydrogen bonds, forming a centrosymmetric 2 + 2 aggregate with R22(8) and R42(8) ring motifs. The crystal structure also features N-H...N and weak C-H...[pi] interactions.

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