Iron hydrogenase active site mimics in supramolecular systems aiming for light-driven hydrogen production
✍ Scribed by Licheng Sun; Björn Åkermark; Sascha Ott
- Book ID
- 104010789
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 578 KB
- Volume
- 249
- Category
- Article
- ISSN
- 0010-8545
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✦ Synopsis
Models of the iron hydrogenase active site [(-DT)Fe 2 (CO) 6 ] (DT: dithiolate) have been synthesized where the dithiolate co-factor bears a functional group to allow for their incorporation into supramolecular systems. Covalently linked to ruthenium(II) polypyridyl photosensitizers, the resulting ruthenium-diiron complexes represent the first members of a new class of dyads designed to promote the light-driven production of hydrogen. The functionalized diiron complexes have been characterized by X-ray crystallography. The redox properties of all complexes were investigated by cyclic voltammetry and the interactions between the photo-excited ruthenium moiety and the diiron unit in these dyads were evaluated by time-resolved spectroscopy.