A hydrogenase model system based on the sequence of cytochrome c: photochemical hydrogen evolution in aqueous media

Chem Commun (Camb). 2011 Aug 7;47(29):8229-31. doi: 10.1039/c1cc11157d. Epub 2011 Apr 26.

Abstract

The diiron carbonyl cluster is held by a native CXXC motif, which includes Cys14 and Cys17, in the cytochrome c sequence. It is found that the diiron carbonyl complex works well as a catalyst for H(2) evolution. It has a TON of ∼80 over 2 h at pH 4.7 in the presence of a Ru-photosensitizer and ascorbate as a sacrificial reagent in aqueous media.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Catalysis
  • Coordination Complexes / chemistry
  • Cytochromes c / chemistry*
  • Cytochromes c / metabolism
  • Hydrogen / chemistry*
  • Hydrogen-Ion Concentration
  • Hydrogenase / chemistry
  • Iron / chemistry
  • Iron-Sulfur Proteins / chemistry
  • Light
  • Models, Molecular*
  • Photosensitizing Agents / chemistry
  • Ruthenium / chemistry
  • Water / chemistry

Substances

  • Coordination Complexes
  • Iron-Sulfur Proteins
  • Photosensitizing Agents
  • Water
  • Ruthenium
  • Hydrogen
  • Cytochromes c
  • Iron
  • iron hydrogenase
  • Hydrogenase