Unsaturated, Mixed-Valence Diiron Dithiolate Model for the Hox State of the [FeFe] Hydrogenase

Unsaturated, Mixed-Valence Diiron Dithiolate Model for the Hox State of the [FeFe] Hydrogenase

Chemists are closing in on functional and structural models for the [FeFe] hydrogenases. Oxidation of [Fe2(S2C2H4)(CO)3(PMe3)(dppv)] (dppv=cis‐1,2‐C2H2(PPh2)2) by one electron affords a mixed‐valence model for the Hox state of the active site of the [FeFe] hydrogenases. Like the enzyme, this model e...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2007, Vol.46 (32), p.6152-6154
Hauptverfasser: Justice, Aaron K, Rauchfuss, Thomas B, Wilson, Scott R
Format: Artikel
Sprache:eng
Schlagworte:
hydrogen
hydrogenases
iron
mixed-valent compounds
thiolates
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Beschreibung
Zusammenfassung:Chemists are closing in on functional and structural models for the [FeFe] hydrogenases. Oxidation of [Fe2(S2C2H4)(CO)3(PMe3)(dppv)] (dppv=cis‐1,2‐C2H2(PPh2)2) by one electron affords a mixed‐valence model for the Hox state of the active site of the [FeFe] hydrogenases. Like the enzyme, this model exhibits the “rotated structure” and binds CO (see scheme). The radical character of the model is confirmed by its ready binding of NO.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200702224