Synthesis of 5 New Substituted Aryldiaminoximes and Their Complexes with Copper(II), Nickel(II) and Cobalt(II)

anti-Chloroaminoglyoxime (CAGH2) has been synthesized by chlorination of anti-aminoglyoxime. The reaction of CAGH2 with substituted aromatic amines in ethanol at -15-degrees-C gives the unsymmetrical vic-dioximes, namely, N-(phenyl)diaminoglyoxime (PDGH2), N-(benzyl)diaminoglyoxime (BDGH2), N-1-naphthyl)diaminoglyoxime (NDGH2), N-(2-pyridyl)diaminoglyoxime (PYDGH2) and N-(1-1'-biphenyl-4-amino-4')diaminoglyoxime (BBGH2). All these dioximes are in the trans-anti-form according to IR and H-1-NMR data. The complexes of these five ligands with Cu(II), Ni(II) and Co(II) are square-planar. H-1-NMR, IR and UV-visible data of new compounds are given.