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Journal Article

A Silicon-Heteroaromatic System as Photosensitizer for Light-Driven Hydrogen Production by Hydrogenase Mimics

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons104869

Escudero,  Daniel
Research Department Thiel, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Supplementary Material (public)

ejic_201300537_sm_miscellaneous_information.pdf
(Supplementary material), 1000KB

Citation

Goy, R., Apfel, U.-P., Elleouet, C., Escudero, D., Elstner, M., Görls, H., et al. (2013). A Silicon-Heteroaromatic System as Photosensitizer for Light-Driven Hydrogen Production by Hydrogenase Mimics. European Journal of Inorganic Chemistry, (25), 4466-4472. doi:10.1002/ejic.201300537.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-A2DF-3
Abstract
The utilization of light and inexpensive catalysts to afford hydrogen represents a huge challenge. Following our interest in silicon-containing [FeFe]-hydrogenase ([FeFe]-H2ase) mimics, we report a new model approach for a photocatalytic [FeFe]-H2ase mimic 1, which contains a 1-silafluorene unit as a photosensitizer. Thereby, the photoactive ligand is linked to the [2Fe2S] cluster through S–CH2–Si bridges. Photochemical H2 evolution experiments were performed and revealed a turnover number (TON) of 29. This is the highest reported photocatalytic efficiency for an [FeFe]-H2ase model complex in which the photosensitizer is covalently linked to the catalytic center.