Molecular oxygen and oxidation catalysis by phosphovanadomolybdates

Ronny Neumann, Alexander M. Khenkin

Research output: Contribution to journalArticle

162 Citations (Scopus)

Abstract

The history of aerobic catalytic oxidation mediated by a subclass of polyoxometalates, the phosphovanadomolybdates of the Keggin structure, [PV xMo12-xO40](3+x)-, is described. In the earlier research it was shown that phosphovanadomolybdates catalyze oxydehydrogenation reactions through an electron-transfer oxidation of a substrate by the polyoxometalate that is then reoxidized by oxygen. These aerobic oxidations are selective and synthetically useful in various transformations, notably diene aromatization, phenol dimerization and alcohol oxidation. Oxygen transfer from the polyoxometalate to arenes and alkylarenes was also discussed as a homogeneous analog of a Mars-van Krevelen oxidation. "Second generation" catalysts include binary complexes of the polyoxometalate and a organometallic compound useful, for example, for methane oxidation and nanoparticles stabilized by polyoxometalates effective for aerobic alkene epoxidation.

Original languageEnglish
Pages (from-to)2529-2538
Number of pages10
JournalChemical Communications
Issue number24
DOIs
Publication statusPublished - 2006

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Molecular oxygen
Catalysis
Oxidation
Organometallic Compounds
Oxygen
Aromatization
Epoxidation
Dimerization
Catalytic oxidation
Methane
Alkenes
Organometallics
Phenol
Olefins
Phenols
Alcohols
Nanoparticles
Catalysts
Electrons
Substrates

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Molecular oxygen and oxidation catalysis by phosphovanadomolybdates. / Neumann, Ronny; Khenkin, Alexander M.

In: Chemical Communications, No. 24, 2006, p. 2529-2538.

Research output: Contribution to journalArticle

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