ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.62, 2006 (SCI-Expanded)
The title compound, C6H9N2+ center dot C2H3O2-, contains eight- and sixteen-membered hydrogen-bonded rings involving 2-amino-3-methylpyridinium and acetate ions. The 2-amino-3-methylpyridinium and acetate ions are linked into zigzag chains by C-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds. The dihedral angle between the 2-amino-3-methylpyridinium ring and the hydrogen-bonded acetate ion is 6.63 (6)degrees. The heterocycle is fully protonated, enabling amine-imine tautomerization.