Hydrogenase Models and Studies Based on Iron Carbonyl Chelate Complexes
New routes to Fe2(SR)2(CO)4L2 complexes have been elucidated, starting from the CO-free iron sources of FeCl2 or iron powder. Such routes utilize oxidative carbonylation, reductive carbonylation, or comproportionation. The routes readily allow isotopic-labeling of model complexes with 57Fe for study by specialized techniques, e.g. Mossbauer or NRVS, generating new insights into [FeFe]- and Hmd-H 2ases. A comproportionation route permits selective labeling of one iron center of the diiron unit with 57Fe. Also, the comproportionation route is finding further utility in generating heterometallic dinuclear complexes.
University of Illinois - Urbana-Champaign
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University of Illinois at Urbana-Champaign