3-{[(E)-(2-Hydroxynaphthalen-1-yl)methylidene]amino}pyridinium perchlorate

Abstract

In the title Schiff base salt, C16H13N2O+·ClO4−, the pyridine ring and the naphthalene ring system are approximately co-planar [making a dihedral angle of 6.05 (12)°] and an intramolecular O—H...N hydrogen bond occurs between the hydroxyl and imino groups. In the crystal, the cations and anions are linked by N—H...O and weak C—H...O hydrogen bonds, forming the supramolecular layers parallel to (100). The crystal studied was an inversion twin refined with minor component = 0.43 (13).