4.1 Article

Ligand coordination sphere effect of Schiff base cis-dioxomolybdenum(VI) complexes in selective catalytic oxidation of alcohols

Journal

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
Volume 53, Issue 12, Pages 1253-1261

Publisher

WILEY
DOI: 10.1002/kin.21530

Keywords

alcohol; catalysis; molybdenum complex; oxidation; Schiff base; substituent effect

Funding

  1. Research Foundation for Advanced Talents of Ludong University [LB2017003]
  2. University Student Innovation and entrepreneurship training Programof Shandong Province [S201910451123, S201910451158]

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Several cis-dioxomolybdenum(VI) complexes with Schiff bases-derived ligands were synthesized and characterized, showing high catalytic performance in alcohol oxidation using H2O2 as oxidant. The study found that the influence of oxygen, sulfur, and nitrogen atom within the coordination sphere around the molybdenum center follows the order S > N > O, suggesting a relationship between the electronegativity of the atom and the catalytic performance in alcohol oxidation.
Several cis-dioxomolybdenum(VI) complexes with Schiff bases-derived ligands were synthesized and fully characterized. The catalytic performances of these complexes were tested in the alcohol oxidation under solvent-free condition using H2O2 as oxidant giving high results. The influence of the oxygen, sulfur, and nitrogen atom within the coordination sphere around the molybdenum center was studied (S > N > O). From this study, we suggest that there exists a relationship between the electronegativity of the atom and the catalytic performance in alcohol oxidation.

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