Comparative study of the peroxidase-like activity of copper(ii) complexes with N₄ and N₂O₂ coordination environments. Application to the oxidation of phenol at moderate temperature.

ABSTRACT: The oxidation of phenol with H₂O₂ was investigated in the presence of mononuclear copper(ii) complexes differing in the first coordination sphere, total charge, redox potential and/or geometry, under mild conditions. Among the tested complexes, [Cu(py₂pn)]²⁺, where py₂pn = 1,3-bis(pyridin-2-ylmethyleneamino)propane, proved to be a good catalyst for the para-oxidation of phenol at 25 °C and neutral pH, while [Cu(phen)₂]²⁺ shows the highest phenol conversion at pH 9. The kinetic study of H₂O₂ oxidation of phenol catalyzed by [Cu(py₂pn)]²⁺ revealed that phenol oxidation strongly depends on pH and temperature and competes with H₂O₂ dismutation at

SUBMITTER: Ferreyra J 

PROVIDER: S-EPMC12757856 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature