4.5 Article

An Air-Stable Fe3S4 Complex with Properties Similar to Those of the HOXair State of the Diiron Hydrogenases

Journal

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 27, Pages 4259-4263

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201200632

Keywords

Enzyme models; Electrochemistry; Iron; Proton reduction; Electron transfer

Funding

  1. Shenzhen Government [JC201005260103A]
  2. Swedish Research Council
  3. K&A Wallenberg Foundation
  4. Swedish Energy Agency

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A Fe3S4 complex bridged by azapropanedithiolate (adt), complex 6, was prepared as a potential model of the HOXair state of [FeFe]-hydrogenases. Complex 6 was characterized by IR and 1H NMR spectroscopy, and its structure was determined by X-ray crystallography. The electrochemical studies show that complex 6 is redox-active under acidic conditions, which provides insight into the catalytic mechanism. Hydrogen evolution, driven by visible light, was observed in CH3CN/D2O solution by online mass spectroscopy.

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