(E)-N′-(5-Chloro-2-hydroxybenzylidene)-3,5-dihydroxybenzohydrazide monohydrate

Abstract

In the title compound, C14H11ClN2O4·H2O, the dihedral angle between the two benzene rings is 8.5 (2)° and an intramolecular O—H...N hydrogen bond is observed in the Schiff base molecule. In the crystal structure, the water molecule accepts an N—H...O hydrogen bond and makes O—H...O hydrogen bonds to two further Schiff base molecules. Further intermolecular O—H...O hydrogen bonds lead to the formation of layers parallel to the bc plane.