Bio-inspired hydrogenase models: mixed-valence triion complexes as proton reduction catalysts

Bio-inspired hydrogenase models: mixed-valence triion complexes as proton reduction catalysts

Mixed-valence triiron complexes Fe(3)(CO)(7-x)(PPh(3))(x)(μ-edt)(2) (x = 0-2) have been prepared and are shown to act as proton reduction catalysts. Catalysis takes place via an ECEC mechanism with a reduced overpotential of ca. 0.45 V for Fe(3)(CO)(7)(μ-edt)(2) as compared to the corresponding diir...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2011-10, Vol.47 (40), p.11222-11224
Hauptverfasser: Ghosh, Shishir, Hogarth, Graeme, Holt, Katherine B, Kabir, Shariff E, Rahaman, Ahibur, Unwin, David G
Format: Artikel
Sprache:eng
Schlagworte:
Biomimetic Materials - chemistry
Catalysis
Catalysts
Electrochemistry
Hydrogenase
Hydrogenase - metabolism
Iron - chemistry
Organometallic Compounds - chemistry
Oxidation-Reduction
Phosphines - chemistry
Protons
Reduction
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Beschreibung
Zusammenfassung:Mixed-valence triiron complexes Fe(3)(CO)(7-x)(PPh(3))(x)(μ-edt)(2) (x = 0-2) have been prepared and are shown to act as proton reduction catalysts. Catalysis takes place via an ECEC mechanism with a reduced overpotential of ca. 0.45 V for Fe(3)(CO)(7)(μ-edt)(2) as compared to the corresponding diiron complex.
ISSN:1359-7345
1364-548X
DOI:10.1039/c1cc13249k