SYNTHESIS OF N-MORPHOLINE OR N,N-DIETHYL, N'-MONOSUBSTITUTED BENZOYL THIOUREA COPPER-COMPLEXES - CHARACTERIZATION AND ELECTROCHEMICAL INVESTIGATIONS

A series of N-morpholine or N,N-diethyl, N'-substituted benzoyl thioureas (R = Cl, Br, OMe or NO2 in ortho, meta or para position) have been synthesized by condensation of morpholine or diethylamine with substituted benzoyl isothiocyanates. All CuL2 complexes have been characterized. Cyclic voltammetry has shown that the irreversible process copper(II)/copper(I) redox systems are influenced slightly by the substitution, whereas the quasi-reversible copper(III)/copper(II) redox systems are not.