The Dual Function of PhOH Included in the Coordination Sphere of the Nickel Complexes in the Processes of Oxidation with Dioxygen

Molecules. 2022 May 30;27(11):3502. doi: 10.3390/molecules27113502.

Abstract

The role of ligands in the regulation of the catalytic activity of Ni-complexes (Ni(acac)2) in green process-selective ethylbenzene oxidation with O2 into α-phenyl ethyl hydroperoxide is considered in this article. The dual function of phenol (PhOH) included in the coordination sphere of the nickel complex as an antioxidant or catalyst depends on the ligand environment of the metal. The role of intermolecular H-bonds and supramolecular structures (AFM method) in the mechanisms of selective catalysis by nickel complexes in chemical and biological oxidation reactions is analyzed.

Keywords: AFM-method; H-bonds; PhOH; catalysis; etylbenzene oxidation; nickel complexes; supramolecular structures.

MeSH terms

  • Catalysis
  • Coordination Complexes* / chemistry
  • Ligands
  • Nickel* / chemistry
  • Oxidation-Reduction
  • Oxygen / chemistry
  • Phenol

Substances

  • Coordination Complexes
  • Ligands
  • Phenol
  • Nickel
  • Oxygen

Grants and funding

The draft program of fundamental research of the Presidium of the Russian Academy of Sciences 14P “Physical chemistry of adsorption phenomena and actinide nanoparticles”. Project title: “Using new approaches (Atomic Force Microscopy, AFM) to study the role of supramolecular structures in enzymatic catalysis”. State Registration number: AAAA-A17-117121920169-0.