K. Babu, G. Peramaiyan, M. Nizammohideen
Mar 5, 2014
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0
Influential Citations
15
Citations
Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the asymmetric unit of the title molecular salt, C6H9N2 +·C2Cl3O2 −, there are two independent 2-amino-6-methylpyridinium cations and two independent trichloroacetate anions. The pyridine N atom of the 2-amino-6-methylpyridine molecule is protonated and the geometries of these cations reveal amine–imine tautomerism. Both protonated 2-amino-6-methylpyridinium cations are essentially planar [maximum deviations = 0.026 (2) and 0.012 (2) Å]. In the crystal, the protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxylate O atoms of the anion via a pair of N—H⋯O hydrogen bonds, forming an R 2 2(8) ring motif. These motifs are connected via N—H⋯O and C—H⋯O hydrogen bonds to form slabs parallel to (101).