Photoinduced Hydrogen Evolution Catalyzed by a Synthetic Diiron Dithiolate Complex Embedded within a Protein Matrix
Photoinduced Hydrogen Evolution Catalyzed by a Synthetic Diiron Dithiolate Complex Embedded within a Protein Matrix
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DOI：
10.1021/cs500392e
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发表时间：
2014-07
期刊：
影响因子：
12.9
通讯作者：
A. Onoda;Yoshihiko Kihara;Kazuki Fukumoto;Y. Sano;Takashi Hayashi
中科院分区：
文献类型：
--
作者：
A. Onoda;Yoshihiko Kihara;Kazuki Fukumoto;Y. Sano;Takashi Hayashi
The hydrogen-evolving diiron complex, (μ-S)2Fe2(CO)6 with a tethered maleimide moiety was synthesized and covalently embedded within the cavity of a rigid β-barrel protein matrix by coupling a maleimide moiety to a cysteine residue within the β-barrel. The (μ-S)2Fe2(CO)6 core within the cavity was characterized by UV–vis absorption and a characteristic CO vibration determined by IR measurements. The diiron complex embedded within the cavity retains the necessary catalytic activity (TON up to 130 for 6 h) to evolve H2 via a photocatalytic cycle with a Ru photosensitizer in a solution of 100 mM ascorbate and 50 mM Tris/HCl at pH 4.0 and 25 °C.
