Abstract
The title salt, C5H6ClN2 +·C3H3O4 −, contains two cations and two anions in the asymmetric unit. Both 2-amino-5-chloropyridinium ions are protonated at their pyridine N atoms and both hydrogen malonate ions feature an intramolecular O—H⋯O hydrogen bond, which generates an S(6) ring motif and results in a folded conformation. In the crystal structure, the cations and anions are linked via N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds, forming chains propagating in [010], which are cross-linked by further C—H⋯O interactions.
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More From: Acta crystallographica. Section E, Structure reports online
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