Acta Cryst. (2009). E65, o1531-o1532  [ doi:10.1107/S1600536809021205 ]

3,4-Diaminopyridinium hydrogen succinate

H.-K. Fun and K. Balasubramani

Abstract: In the title compound, C₅H₈N₃⁺·C₄H₅O₄^-, the pyridine N atom of the 3,4-diaminopyridine molecule is protonated. The protonated N atom participates in an N-HO hydrogen bond to a succinate O atom of the singly deprotonated succinate anion. Each of the two amino groups are hydrogen-bonded to the O atoms of two different sets of succinate groups.. The crystal structure is further stabilized by O-HO and C-HO hydrogen bonds.

Online 10 June 2009

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