Synthesis and characterization of new homo and heteronuclear Schiff base copper(II) complexes

Abstract

This article describes the synthesis of isonitrosomethyl-p-tolyl ketone [HL] as the startingcompound and then we prepared the new oxime ligand from the reactions of the amine materialswith 1,2-diaminobenzene [H2L1]. (1E, 2E, 1'E, 2'E) - 3,3'-bis [(4-tolyl ketone) - (1,2 phenylenediimine)]. Acetaldehyde dioxime ligand was used to synthesize the metal complexes. The complexeswere elucidated by FT-IR, elemental analysis, magnetic moment measurements, molar conductivity,mass spectra, and TGA studies. The free ligand was also described with its 13C and 1H-NMR spectra.For complexes using spectroscopic and stoichiometric data of the complexes showed thatmetal:ligand ratio of mononuclear copper(II) complex was found to be 1:1 while this ratio was 2:1in homo- and heterodinuclear copper(II) complex and 3:2 in the trinuclear copper(II) complex. Allthese data show us that the proposed structure is consistent with the obtained data.