Tracking an FeV(O) Intermediate for Water Oxidation in Water

Author:

Wei Xiang‐Zhu12,Ding Tian‐Yu12,Wang Yang12,Yang Bing12,Yang Qing‐Qing12,Ye Shengfa3,Tung Chen‐Ho12,Wu Li‐Zhu12ORCID

Affiliation:

1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials New Cornerstone Science Laboratory Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China

2. School of Future Technology University of Chinese Academy of Sciences Beijing 100049 P. R. China

3. State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China

Abstract

AbstractHigh‐valent iron‐oxo species are appealing for conducting O−O bond formation for water oxidation reactions. However, their high reactivity poses a great challenge to the dissection of their chemical transformations. Herein, we introduce an electron‐rich and oxidation‐resistant ligand, 2‐[(2,2′‐bipyridin)‐6‐yl]propan‐2‐ol to stabilize such fleeting intermediates. Advanced spectroscopies and electrochemical studies demonstrate a high‐valent FeV(O) species formation in water. Combining kinetic and oxygen isotope labelling experiments and organic reactions indicates that the FeV(O) species is responsible for O−O bond formation via water nucleophilic attack under the real catalytic water oxidation conditions.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Medicine

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