Inspired  by the active sites of hydrogenase enzymes, many active site mimics of the formula (�-SR)2Fe2(CO)6 have been synthesized and studied for their hydrogen catalytic  properties. New functional  hydrogenase mimics of the formula [(�-SR)(�-SR')Fe2(CO)6],  R= methyl and R'= phenyl or thienyl group, were synthesized and investigated. The  red crystalline products were isolated and characterized by IR, NMR, and photoelectron  spectroscopy. The structures were confirmed by single crystal X-ray  diffraction. Cyclic voltammetry revealed that the [(�-SR)(�-SR')Fe2(CO)6]  complexes undergo irreversible two-electron reductions. In the presence of  acetic acid, two catalytic reductions producing molecular hydrogen were  observed. The first catalytic reductions occur at lower overpotential compared  with that of the benchmark [(�-1,2-benzenedithiolato)][Fe(CO)3]2.

Synthesis, structural, and electrochemical studies of diiron hydrogenase mimics: [(μ-SR)(μ-SR')Fe<sub>2</sub>(CO)<sub>6</sub>] system

243rd National Meeting (2012)

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Synthesis, structural, and electrochemical studies of diiron hydrogenase mimics: [(μ-SR)(μ-SR')Fe2(CO)6] system

Synthesis, structural, and electrochemical studies of diiron hydrogenase mimics: [(μ-SR)(μ-SR')Fe₂(CO)₆] system