Acta Cryst. (2012). E68, o853  [ doi:10.1107/S1600536812006897 ]

2-(3-Aminopyridinium-1-yl)-3-carboxypropanoate monohydrate

G. Millán Corrales, D. Morales-Morales, S. Hernández-Ortega, J. J. Campos-Gaxiola and A. Cruz Enríquez

Abstract: The title compound, C₉H₁₀N₂O₄·H₂O, was obtained as a zwitterion derived from the nucleophilic attack of 3-aminopyridine on the fumaric ,-system. Within the molecule, the aminopyridine moiety and the carboxylate and carboxylic acid fragments form dihedral angles of 68.6 (2) and 62.8 (2)°, respectively. The geometry adopted by the molecule does not allow the formation of centrosymmetric dimeric hydrogen-bonded units; instead chains along the a axis are linked by COO-HOOC motifs. These chains are interconnected by N-HO and O-HO hydrogen bonds involving the carboxylic acid and carboxylate units and the solvent water molecules.

Online 24 February 2012

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