1,2-Bis(3-hydroxybenzylidene)diazane

Abstract

The asymmetric unit of the title compound, C14H12N2O2, which was synthesized unexpectedly by refluxing an ethanolic solution of isonicotinic hydrazide and 3-hydroxybenzaldehyde, contains one half-molecule with the center of the N—N bond lying on a crystallographic center of inversion. In the crystal structure, molecules are linked by intermolecular O—H...N hydrogen bonds into an infinite layer structure parallel to (110).