Elaboration de Complexes Catalyseurs Précurseurs des Réactions d’Oxydation de Substrats Organique

Abstract

Two new non-symmetrical tetradentate Schiff base ligands and their corresponding oxovanadium, copper, and iron complexes were synthesized and characterized by various spectral methods such as IR, UV-Vis, and NMR. The single-crystal structure of one of the oxovanadium complexes was identified by X-ray diffraction (XRD) and compared to the one optimized by DFT. The electrochemical properties of the prepared compounds were investigated by cyclic voltammetry in DMF on a glassy carbon electrode (CV) under a nitrogen atmosphere, revealing quasi-reversible redox couples. The catalytic activity of the oxovanadium and copper complexes was explored in the oxidative bromination reaction of phenol red in the presence of hydrogen peroxide. The antibacterial evaluation of the VOL complex demonstrates acceptable prevention against the tested pathogenic microorganisms