New Powerful and Oxidatively Rugged Dinuclear Ru Water Oxidation Catalyst: Control of Mechanistic Pathways by Tailored Ligand Design

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• 作者：Sven Neudeck ; Somnath Maji ; Isidoro López ; Steffen Meyer ; Franc Meyer ; Antoni Llobet
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：January 8, 2014
• 年：2014
• 卷：136
• 期：1
• 页码：24-27
• 全文大小：322K
• ISSN：1520-5126

文摘

A new powerful and oxidatively rugged pyrazolate-based water oxidation catalyst of formula {[Ru^II(py-SO₃)₂(H₂O)]₂(渭-Mebbp)}^{鈥?/sup>, 1(H₂O)₂鈥?/sup>, has been prepared and thoroughly characterized spectroscopically and electrochemically. This new catalyst has been conceived based on a specific ligand tailoring design, so that its performance has been systematically improved. It was also demonstrated how subtle ligand modifications cause a change in the O鈥揙 bond formation mechanism, thus revealing the close activation energy barriers associated with each pathway.}