2-Amino-3-methyl-pyridinium hydrogen phthalate

摘要

In the title molecular salt, C6H9N2 + C8H5O4 , the cation is protonated at the pyridine N atom and the anion is deprotonated at the hydroxy O atom. The anion features an intramolecular O—HO hydrogen bond with the H atom located almost in the middle of the two O atoms. The dihedral angle between the pyridine and benzene rings is 19.17 (12). The N—HO hydrogen bonds generate R2 2 (8) and R2 4 (18) ring motifs. The crystal structure is stabilized by N— HO hydrogen bonds. The structure is also influenced by weak – [centroidto-centroid distance = 3.7347 (14) A? ] interaction between the anions.