Synthesis of N'-(4'-benzo[15-crown-5]-phenylaminoglyoxime and its complexes with copper(II), nickel(II), and cobalt(II)

Abstract

N'-(4'-Benzo[15-crown-5]phenylaminoglyoxime (H2L) and the sodium chloride adduct of N'-(4' -benzo[15-crown-5]phenylaminoglyoxime (H2L·NaCl) have been prepared from chlorophenylglyoxime, 4'-aminobenzo[15-crown-5] and sodium bicarbonate or sodium bicarbonate and sodium chloride. Nickel(II), cobalt(II) and copper(II) complexes of H2L and H2L·NaCl have a metal-ligand ratio of 1:2 and the ligand coordinates through the two N atoms, as do most of the vic-dioximes. Their IR spectra and elemental analyses are given, together with 1H NMR spectra of the ligands.