Electrochemical synthesis and crystal structure of cobalt(II), nickel(II), copper(II), zinc(II) and cadmium(II) complexes with 2-pyridinecarbaldehyde-(2′-aminosulfonylbenzoyl)hydrazone

Metal complexes, [ML2] M = Co, Ni, Cu, Zn or Cd, derivatives from a new hydrazonic Schiff base ligand have been synthesised by electrochemical oxidation of the anodic metal. The structural studies show that the metal is in a distorted octahedral environment with the monoanionic ligand acting as a meridional tridentate (N,N,O) chelate system.