Cerium(IV)-driven water oxidation catalyzed by a manganese(V)-nitrido complex

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Li Ma
  • Qian Wang
  • Wai-Lun Man
  • Hoi-Ki Kwong

Detail(s)

Original languageEnglish
Pages (from-to)5246-5249
Journal / PublicationAngewandte Chemie - International Edition
Volume54
Issue number17
Online published26 Feb 2015
Publication statusPublished - 20 Apr 2015

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. High turnover: The study of manganese complexes as catalysts for the oxidation of water is of great interest as they can serve as models for the oxygen-evolving complex of photosystem II. The manganese(V)-nitrido complex [Mn(N)(CN)4]2- was now shown to catalyze the oxidation of water by cerium(IV) with a turnover number (TON) of higher than 180.

Research Area(s)

  • cerium, homogeneous catalysis, manganese complexes, nitrides, oxidation

Citation Format(s)

Cerium(IV)-driven water oxidation catalyzed by a manganese(V)-nitrido complex. / Ma, Li; Wang, Qian; Man, Wai-Lun; Kwong, Hoi-Ki; Ko, Chi-Chiu; Lau, Tai-Chu.

In: Angewandte Chemie - International Edition, Vol. 54, No. 17, 20.04.2015, p. 5246-5249.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review