Functional Polypyridine Co Complex as an Efficient Catalyst for Photo-Induced Water Oxidation

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• 作者：Hongyan Wang ; Zhijuan Xin ; Ruijuan Xiang ; Si Liu ; Xuewang Gao and Chengbo Li
• 刊名：Chinese Journal of Chemistry
• 出版年：2016
• 出版时间：August, 2016
• 年：2016
• 卷：34
• 期：8
• 页码：757-762
• 全文大小：570K
• ISSN：1614-7065

文摘

A novel mononuclear cobalt complex 1 was synthesized by treatment of CoCl₂·6H₂O with a COOMe functionalized TPA ligand (TPA=tris(2-pyridylmethyl)amine). In a basic borate buffer, 1 acts as an efficient catalyst for water oxidation, which is confirmed by an extinct catalytic oxidant wave in electrochemistry. Visible light-driven water oxidation has been achieved by 1 with a TON of 127.7 and a TOF of 3.8 s⁻¹ respectively in a homogeneous system. In comparison to the reference RC with naked TPA, the higher efficiency of 1 evidences COOMe on ligand can improve the catalytic efficiency, leading to an effective pathway towards construction of a robust and stable artificial photosynthesis system.