An octanuclear Cu(II) cluster with a bio-inspired Cu4O4 cubic fragment for efficient photocatalytic water oxidation

Junqi Lin; Xiangming Liang; Xiaohu Cao; Nannan Wei; Yong Ding

doi:10.1039/C8CC06362A

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An octanuclear Cu(ii) cluster with a bio-inspired Cu₄O₄ cubic fragment for efficient photocatalytic water oxidation†

Junqi Lin,‡^a Xiangming Liang,‡^a Xiaohu Cao,^a Nannan Wei^a and Yong Ding

*^ab

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* Corresponding authors

^a State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
E-mail: dingyong1@lzu.edu.cn

^b State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Abstract

An octanuclear Cu(II) cluster [Cu₈(dpk·OH)₈(OAc)₄](ClO₄)₄ (dpk·OH = the monoanion of the hydrated, gem-diol form of di-2-pyridyl ketone) that contains two Cu₄O₄ cubic fragments similar to the Mn₄CaO₅ cluster in photosystem II (PSII) was found to be an efficient catalyst for photocatalytic water oxidation. In the [Ru(bpy)₃]²⁺/Na₂S₂O₈ system, it afforded an optimal oxygen yield, turnover number (TON) and turnover frequency (TOF) of 35.6%, 178 and 3.6 s⁻¹, respectively, which are the highest values amongst all of the Cu-based photocatalytic water oxidation catalysts (WOCs).

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Article information

DOI: https://doi.org/10.1039/C8CC06362A
Article type: Communication
Submitted: 04 Aug 2018
Accepted: 09 Oct 2018
First published: 10 Oct 2018

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Chem. Commun., 2018,54, 12515-12518

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An octanuclear Cu(II) cluster with a bio-inspired Cu₄O₄ cubic fragment for efficient photocatalytic water oxidation

J. Lin, X. Liang, X. Cao, N. Wei and Y. Ding, Chem. Commun., 2018, 54, 12515 DOI: 10.1039/C8CC06362A

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