Sulfide oxidation by hydrogen peroxide catalyzed by iron complexes: Two metal centers are better than one

Yasmina Mekmouche, Helga Hummel, Raymond Y N Ho, Lawrence Que, Volker Schünemann, Fabrice Thomas, Alfred X. Trautwein, Colette Lebrun, Karine Gorgy, Jean Claude Leprêtre, Marie Noëlle Collomb, Alain Deronzier, Marc Fontecave, Stéphane Ménage

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

Peroxoiron species have been proposed to be involved in catalytic cycles of iron-dependent oxygenases and in some cases as the active intermediates during oxygen-transfer reactions. The catalytic properties of a mononuclear iron complex, [FeII(pb)2-(CH3CN)2] (pb=(-)4,5-pinene-2,2′-bipyridine), have been compared to those of its related dinuclear analogue. Each system generates specific peroxo adducts, which are responsible for the oxidation of sulfides to sulfoxides. The dinuclear catalyst was found to be more reactive and (enantio)selective than its mononuclear counterpart, suggesting that a second metal site affords specific advantages for stereoselective catalysis. These results might help for the design of future enantioselective iron catalysts.

Original languageEnglish (US)
Pages (from-to)1196-1204
Number of pages9
JournalChemistry - A European Journal
Volume8
Issue number5
DOIs
StatePublished - Mar 1 2002

Keywords

  • Bioinorganic chemistry
  • Enantioselective catalysis
  • Hydrogen peroxide
  • Iron
  • Peroxoiron adducts

Fingerprint Dive into the research topics of 'Sulfide oxidation by hydrogen peroxide catalyzed by iron complexes: Two metal centers are better than one'. Together they form a unique fingerprint.

Cite this