Carbon-hydrogen bond activation of arenes and alkylarenes by electron transfer followed by oxygen transfer catalyzed by vanadium substituted polyoxometalates - A comparative study of the reactivity of different polyoxometalate compounds

Alexander M. Khenkin, Ronny Neumann

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The reactivity of various vanadium-substituted polyoxometalates with different structures and oxidation potentials was compared for the electron transfer-oxygen transfer oxidation of anthracene and dihydroanthracene as model substrates. Electron transfer initiates the C-H bond activation. Analysis of reactivity via an outer sphere electron transfer model demonstrates that in addition to the oxidation potential, the polyoxometalate structure and charge are important parameters in the electron transfer reaction. A further comparative study for electron transfer and oxygen transfer reactivity showed that the eventual formation of the oxygenated product, although initiated by electron transfer was dependent on other factors.

Original languageEnglish
Article number18919
Pages (from-to)134-138
Number of pages5
JournalJournal of Organometallic Chemistry
Volume793
DOIs
Publication statusPublished - Sep 15 2015

Fingerprint

Vanadium
vanadium
Hydrogen
Hydrogen bonds
electron transfer
Carbon
reactivity
Chemical activation
activation
Electrons
hydrogen bonds
Oxygen
carbon
oxygen
Oxidation
oxidation
Anthracene
anthracene
polyoxometalate I
Substrates

Keywords

  • C-H bond activation
  • Electron transfer
  • Homogeneous catalysis
  • Oxidation
  • Polyoxometalates
  • Vanadium

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Biochemistry

Cite this

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abstract = "The reactivity of various vanadium-substituted polyoxometalates with different structures and oxidation potentials was compared for the electron transfer-oxygen transfer oxidation of anthracene and dihydroanthracene as model substrates. Electron transfer initiates the C-H bond activation. Analysis of reactivity via an outer sphere electron transfer model demonstrates that in addition to the oxidation potential, the polyoxometalate structure and charge are important parameters in the electron transfer reaction. A further comparative study for electron transfer and oxygen transfer reactivity showed that the eventual formation of the oxygenated product, although initiated by electron transfer was dependent on other factors.",
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T1 - Carbon-hydrogen bond activation of arenes and alkylarenes by electron transfer followed by oxygen transfer catalyzed by vanadium substituted polyoxometalates - A comparative study of the reactivity of different polyoxometalate compounds

AU - Khenkin, Alexander M.

AU - Neumann, Ronny

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N2 - The reactivity of various vanadium-substituted polyoxometalates with different structures and oxidation potentials was compared for the electron transfer-oxygen transfer oxidation of anthracene and dihydroanthracene as model substrates. Electron transfer initiates the C-H bond activation. Analysis of reactivity via an outer sphere electron transfer model demonstrates that in addition to the oxidation potential, the polyoxometalate structure and charge are important parameters in the electron transfer reaction. A further comparative study for electron transfer and oxygen transfer reactivity showed that the eventual formation of the oxygenated product, although initiated by electron transfer was dependent on other factors.

AB - The reactivity of various vanadium-substituted polyoxometalates with different structures and oxidation potentials was compared for the electron transfer-oxygen transfer oxidation of anthracene and dihydroanthracene as model substrates. Electron transfer initiates the C-H bond activation. Analysis of reactivity via an outer sphere electron transfer model demonstrates that in addition to the oxidation potential, the polyoxometalate structure and charge are important parameters in the electron transfer reaction. A further comparative study for electron transfer and oxygen transfer reactivity showed that the eventual formation of the oxygenated product, although initiated by electron transfer was dependent on other factors.

KW - C-H bond activation

KW - Electron transfer

KW - Homogeneous catalysis

KW - Oxidation

KW - Polyoxometalates

KW - Vanadium

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