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

Abstract

N'-[4'-benzo(15-crown-5)]-4-tolylaminoglyoxime (H 2L1), the sodium chloride salt of H2L 1 (H2L1·NaCl), N'-[4'- benzo(15-crown-5)]-4-chlorophenylaminoglyoxime (H2L2) and the sodium chloride salt of H2L2 (H2L 2·NaCl) have been prepared from p-chlorophenylchloroglyoxime, p-tolylchloroglyoxime, 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.