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Issue 7, 2012
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A cobalt(ii) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

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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

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Article information


Submitted
03 Apr 2012
Accepted
17 May 2012
First published
17 May 2012

Energy Environ. Sci., 2012,5, 7903-7907
Article type
Communication

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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