Bio-inspired hydrogenase models: mixed-valence triion complexes as proton reduction catalysts.

@article{Ghosh2011BioinspiredHM,
  title={Bio-inspired hydrogenase models: mixed-valence triion complexes as proton reduction catalysts.},
  author={Shishir Ghosh and Graeme Hogarth and K B Holt and Shariff E. Kabir and Ahibur Rahaman and David G. Unwin},
  journal={Chemical communications},
  year={2011},
  volume={47 40},
  pages={11222-4}
}
Mixed-valence triiron complexes Fe(3)(CO)(7-x)(PPh(3))(x)(μ-edt)(2) (x = 0-2) have been prepared and are shown to act as proton reduction catalysts. Catalysis takes place via an ECEC mechanism with a reduced overpotential of ca. 0.45 V for Fe(3)(CO)(7)(μ-edt)(2) as compared to the corresponding diiron complex.