X-Ray crystal structures of the nickel(II) and copper(II) complexes of O-phospho-DL-threonine–pyridoxal Schiff base
Abstract
X-Ray structural analyses of two metal complexes of O-phospho-DL-threonine–pyridoxal Schiff base, [Ni(C12H15N2O8P)(H2O)3]·2H2O (1) and [Cu(C12H15N2O8P)(H2O)]·H2O (2), show the nickel (II) complex (1) to be a monomer with the octahedral nickel ion bonded to the tridentate Schiff base and three water molecules, and the copper(II) complex (2) to be a dimer with the square-pyramidal copper ion bonded to the tetradentate Schiff base, involving a phosphate oxygen atom from a neighbouring molecule, and one water molecule.