Iron hydrogenase active site mimics in supramolecular systems aiming for light-driven hydrogen production

被引:254
作者
Sun, LC
Åkermark, B
Ott, S [1 ]
机构
[1] Stockholm Univ, Arrhenius Lab, Dept Organ Chem, S-10691 Stockholm, Sweden
[2] Uppsala Univ, BMC, Dept Organ Chem, S-75123 Uppsala, Sweden
关键词
bioinorganic chemistry; electron transfer; enzyme models; iron hydrogenase; ruthenium;
D O I
10.1016/j.ccr.2005.01.013
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Models of the iron hydrogenase active site [(mu-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. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1653 / 1663
页数:11
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