Acta Cryst. (2010). E66, o464-o465  [ doi:10.1107/S1600536810002990 ]

2-Amino-5-chloropyridinium hydrogen succinate

M. Hemamalini and H.-K. Fun

Abstract: In the title salt, C₅H₆ClN₂⁺·C₄H₅O₄^-, the pyridine N atom is protonated. The pyridinium and amino groups associate via a pair of N-HO hydrogen bonds to the carboxylate O atoms of the singly deprotonated succinate anion. The hydrogen succinate anions self-assemble via O-HO hydrogen bonds into chains along the b axis. The crystal structure is further stabilized by additional N-HO hydrogen bonds involving the second amino H atoms, as well as C-HO contacts, forming a three-dimensional network.

Online 30 January 2010

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