Chlorido[N′-(2-oxidobenzilidene)acetohydrazide-κ2O,N′,O′]copper(II) dihydrate

Abstract

In the title complex, [Cu(C9H9N2O2)Cl]·2H2O, prepared from the Schiff base ligand N′-(2-hydroxybenzilidene)acetohydrazide and copper(II) chloride, the CuII atom is coordinated by two O atoms and one N atom from the ligand and by a Cl atom in a distorted square-planar geometry. The two donor O atoms of the tridentate Schiff base ligand are in a trans arrangement. In the crystal structure, there is an extensive intermolecular hydrogen-bonding network; N—H...O, O—H...O and O—H...Cl interactions, involving the uncoordinated water molecules, lead to the formation of a two-dimensional network parallel to the ab plane.