(E)-1-(2-Phenyldiazen-2-ium-1-yl)naphthalen-2-olate

Abstract

In the title zwitterionic compound, C16H12N2O, the dihedral angle between the phenyl ring and the naphthalene ring system is 17.85 (8)°; an intramolecular N—H...O hydrogen bond occurs. In the crystal, π–π stacking is observed between naphthalene ring systems of adjacent molecules, the centroid–centroid distance being 3.6486 (11) Å.