Issue 7, 2012

A cobalt(ii) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

Abstract

The complex [CoII(qpy)(OH2)2]2+ (qpy = 2,2′:6′,2′′:6′′,2′′′-quaterpyridine) is an efficient visible light-driven catalyst for both water oxidation and reduction. It catalyses photochemical oxygen evolution from water at pH 8.0 with [RuII(bpy)3]2+/S2O82− (λ = 457 nm, max TON = 335, bpy = 2,2′-bipyridine). It also catalyses photochemical hydrogen generation from [IrIII(dF(CF3)ppy)2(dtbbpy)]+/TEOA (dF(CF3)ppy = anion of 2-(2,4-difluorophenyl)-5-trifluoromethylpyridine, dtbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine, TEOA = triethanolamine) in aqueous acetonitrile (λ > 420 nm, max TON = 1730).

Graphical abstract: A cobalt(ii) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

Supplementary files

Article information

Article type
Communication
Submitted
03 Apr 2012
Accepted
17 May 2012
First published
17 May 2012

Energy Environ. Sci., 2012,5, 7903-7907

A cobalt(II) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

C. Leung, S. Ng, C. Ko, W. Man, J. Wu, L. Chen and T. Lau, Energy Environ. Sci., 2012, 5, 7903 DOI: 10.1039/C2EE21840B

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