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- Title
Cerium(IV)-Driven Water Oxidation Catalyzed by a Manganese(V)-Nitrido Complex.
- Authors
Ma, Li; Wang, Qian; Man, Wai ‐ Lun; Kwong, Hoi ‐ Ki; Ko, Chi ‐ Chiu; Lau, Tai ‐ Chu
- Abstract
The study of manganese complexes as water-oxidation catalysts (WOCs) is of great interest because they can serve as models for the oxygen-evolving complex of photosystem II. In most of the reported Mn-based WOCs, manganese exists in the oxidation states III or IV, and the catalysts generally give low turnovers, especially with one-electron oxidants such as CeIV. Now, a different class of Mn-based catalysts, namely manganese(V)-nitrido complexes, were explored. The complex [MnV(N)(CN)4]2− turned out to be an active homogeneous WOC using (NH4)2[Ce(NO3)6] as the terminal oxidant, with a turnover number of higher than 180 and a maximum turnover frequency of 6 min−1. The study suggests that active WOCs may be constructed based on the MnV(N) platform.
- Subjects
CERIUM; CATALYTIC oxidation; MANGANESE; PHOTOSYSTEMS; HOMOGENEOUS catalysis
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 17, p5335
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201500507