Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes: Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts

Yingying Liu; Siu-Mui Ng; Shek-Man Yiu; William W. Y. Lam; Xi-Guang Wei; Kai-Chung Lau; Tai-Chu Lau

doi:10.1002/anie.201408795

Author(s)

Yingying Liu
Siu-Mui Ng
Shek-Man Yiu
William W. Y. Lam
Xi-Guang Wei
Tai-Chu Lau

Detail(s)

Original language	English
Pages (from-to)	14468-14471
Journal / Publication	Angewandte Chemie - International Edition
Volume	53
Issue number	52
Online published	27 Oct 2014
Publication status	Published - 22 Dec 2014

Link(s)

DOI	DOI https://doi.org/10.1002/anie.201408795 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84919686098&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(8b3a9144-0afd-434a-8024-d18579ef3cc1).html

Abstract

Polypyridyl and related ligands have been widely used for the development of water oxidation catalysts. Supposedly these ligands are oxidation-resistant and can stabilize high-oxidation-state intermediates. In this work a series of ruthenium(II) complexes [Ru(qpy)(L)2] (qpy= 2,2' :6',2":6'',2'''-quaterpyridine; L = substituted pyridine) have been synthesized and found to catalyze Ce-driven water oxidation, with turnover numbers of up to 2100. However, these ruthenium complexes are found to function only as precatalysts; first, they have to be oxidized to the qpy-N,N'''- dioxide (ONNO) complexes [Ru(ONNO)(L)2] which are the real catalysts for water oxidation.

Research Area(s)

Density functional calculations, Homogeneous catalysis, Polypyridyl ligands, Ruthenium complexes, Water oxidation

Citation Format(s)

[ RIS ] [ BibTeX ]

Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes : Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts. / Liu, Yingying; Ng, Siu-Mui; Yiu, Shek-Man et al.

In: Angewandte Chemie - International Edition, Vol. 53, No. 52, 22.12.2014, p. 14468-14471.

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

Liu, Y, Ng, S-M, Yiu, S-M, Lam, WWY, Wei, X-G, Lau, K-C & Lau, T-C 2014, 'Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes: Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts', Angewandte Chemie - International Edition, vol. 53, no. 52, pp. 14468-14471. https://doi.org/10.1002/anie.201408795

Liu, Y., Ng, S-M., Yiu, S-M., Lam, W. W. Y., Wei, X-G., Lau, K-C., & Lau, T-C. (2014). Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes: Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts. Angewandte Chemie - International Edition, 53(52), 14468-14471. https://doi.org/10.1002/anie.201408795

Liu Y, Ng S-M, Yiu S-M, Lam WWY, Wei X-G, Lau K-C et al. Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes: Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts. Angewandte Chemie - International Edition. 2014 Dec 22;53(52):14468-14471. Epub 2014 Oct 27. doi: 10.1002/anie.201408795

Liu, Yingying ; Ng, Siu-Mui ; Yiu, Shek-Man et al. / Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes : Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts. In: Angewandte Chemie - International Edition. 2014 ; Vol. 53, No. 52. pp. 14468-14471.

Catalytic water oxidation by ruthenium(II) quaterpyridine (qpy) complexes : Evidence for ruthenium(III) qpy-N,N''-dioxide as the real catalysts