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

Chi Fai Leung; Siu Mui Ng; Chi Chiu Ko; Wai Lun Man; Jiashou Wu; Lingjing Chen; Tai Chu Lau

doi:10.1039/c2ee21840b

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

Chi Fai Leung
, Siu Mui Ng
, Chi Chiu Ko
, Wai Lun Man
, Jiashou Wu
, Lingjing Chen
, Tai Chu Lau^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

198 Citations (Scopus)

Abstract

The complex [Co^II(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 [Ru^II(bpy) ₃]²⁺/S₂O₈^2- (λ = 457 nm, max TON = 335, bpy = 2,2′-bipyridine). It also catalyses photochemical hydrogen generation from [Ir^III(dF(CF ₃)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).

Original language	English
Pages (from-to)	7903-7907
Number of pages	5
Journal	Energy and Environmental Science
Volume	5
Issue number	7
Early online date	17 May 2012
DOIs	https://doi.org/10.1039/c2ee21840b
Publication status	Published - 1 Jul 2012

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@article{bea824c340bb494aa0382ffb551af3de,

title = "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(CF 3)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).",

author = "Leung, \{Chi Fai\} and Ng, \{Siu Mui\} and Ko, \{Chi Chiu\} and Man, \{Wai Lun\} and Jiashou Wu and Lingjing Chen and Lau, \{Tai Chu\}",

year = "2012",

month = jul,

day = "1",

doi = "10.1039/c2ee21840b",

language = "English",

volume = "5",

pages = "7903--7907",

journal = "Energy and Environmental Science",

issn = "1754-5692",

publisher = "Royal Society of Chemistry",

number = "7",

}

TY - JOUR

T1 - A cobalt(ii) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction

AU - Leung, Chi Fai

AU - Ng, Siu Mui

AU - Ko, Chi Chiu

AU - Man, Wai Lun

AU - Wu, Jiashou

AU - Chen, Lingjing

AU - Lau, Tai Chu

PY - 2012/7/1

Y1 - 2012/7/1

N2 - 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(CF 3)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).

AB - 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(CF 3)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).

UR - https://www.scopus.com/pages/publications/84863108832

U2 - 10.1039/c2ee21840b

DO - 10.1039/c2ee21840b

M3 - Journal article

AN - SCOPUS:84863108832

SN - 1754-5692

VL - 5

SP - 7903

EP - 7907

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 7

ER -

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

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