(E)-3-Hydroxy-N′-(2-hydroxybenzylidene)-2-naphthohydrazide

Abstract

The title compound, C18H14N2O3, is an aroylhydrazone with an approximately planar structure [dihedral angle of 15.27 (13)° between the benzene ring and the naphthyl ring system], stabilized by intramolecular N—H...O and O—H...N hydrogen bonds. Intermolecular O—H...O hydrogen bonds with the keto group as acceptor lead to strands along [100]. In terms of graph-set analysis, the descriptor on the unitary level is C11(6)S(6)S(6).