2-Amino-3-Methylpyridinium Acetate

Abstract

The title compound, C<inf>6</inf>H<inf>9</inf>N<inf>2</inf> +·C<inf>2</inf>H<inf>3</inf>O<inf>2</inf>-, contains eight- and sixteen-membered hydrogen-bonded rings involving 2-amino-3-methylpyridinium and acetate ions. The 2-amino-3-methyl-pyridinium and acetate ions are linked into zigzag chains by C-H⋯O and N-H⋯O hydrogen bonds. The dihedral angle between the 2-amino-3-methylpyridinium ring and the hydrogen-bonded acetate ion is 6.63 (6)°. The heterocycle is fully protonated, enabling amine-imine tautomerization. © 2006 International Union of Crystallography Printed in Great Britain - all rights reserved.