Synthesis of 4 New Substituted Arylaminoglyoximes and Their Complexes With Copper(Ii), Nickel(Ii), Cobalt(Ii), and Palladium(Ii)

Four new substituted aminoglyoximes, N-(4-sulfamido- phenyl) glyoxime (SAGH?), N-(4-nitrophenyl) aminoglyoxime (NGH), N-(4-tolyl) aminoglyoxime (PTGH?) and N-(2-tolyl) aminoglyoxime (OTGH2) have been synthesized from anti- chloroglyoxime and the corresponding substituted amines. All these dioximes are in the trans-anti-form according to IR and NMR data. The complexes of these four ligands with Cu(II), Ni(II), Co(II) and Pd(II) are square planar H-bridged structures with a metal-ligand ratio of 1:2, except the Cu(II) complex of SAGH, where the metal-ligand ratio is 1:1. In the case of NGH?, the 4-nitrophenylamino group is replaced by the -NH2 group when Pdcl? dissolved in conc. ammonium hydroxide was used to prepare the palladium (II) complex. 1H-NMR, IR and UV-visible data of the new compounds are given.