Reduction of CO2 to CO using low-coordinate iron: formation of a four-coordinate iron dicarbonyl complex and a bridging carbonate complex

Azwana R Sadique; William W Brennessel; Patrick L Holland

doi:10.1021/ic701914m

Reduction of CO2 to CO using low-coordinate iron: formation of a four-coordinate iron dicarbonyl complex and a bridging carbonate complex

Inorg Chem. 2008 Feb 4;47(3):784-6. doi: 10.1021/ic701914m. Epub 2008 Jan 3.

Authors

Azwana R Sadique¹, William W Brennessel, Patrick L Holland

Affiliation

¹ Department of Chemistry, University of Rochester, Rochester, New York 14627, USA.

Abstract

A reduced diiron(I) complex reacts with CO(2) to give two iron-containing products. One product has a carbonate bridge, which isomerizes rapidly at -70 degrees C and may be derived from an oxodiiron intermediate. The formation of this product releases free CO, which leads to a four-coordinate iron dicarbonyl complex. This product is the first crystallographically characterized example of a four-coordinate iron dicarbonyl species, a moiety that may be present in the active site of Hmd ("iron-sulfur cluster free") hydrogenase.

Publication types

Research Support, N.I.H., Extramural

MeSH terms

Carbon Dioxide / chemistry*
Carbon Monoxide / chemistry*
Carbonates / chemistry*
Crystallography, X-Ray
Iron / chemistry*
Models, Molecular

Substances

Carbonates
Carbon Dioxide
Carbon Monoxide
Iron

Abstract

Publication types

MeSH terms

Substances

Grants and funding