Issue 55, 2016
From the journal:

Chemical Communications

Characterization of a trinuclear ruthenium species in catalytic water oxidation by Ru(bda)(pic)2 in neutral media†

Biaobiao Zhang,a   Fei Li,*a   Rong Zhang,a   Chengbing Ma,b   Lin Chena  and  Licheng Sunac  

* Corresponding authors

a State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, China
E-mail: lifei@dlut.edu.cn

b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China

c Department of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, 10044 Stockholm, Sweden

Abstract

A RuIII–O–RuIV–O–RuIII type trinuclear species was crystallographically characterized in water oxidation by Ru(bda)(pic)2 (H2bda = 2,2′-bipyridine-6,6′-dicarboxylic acid; pic = 4-picoline) under neutral conditions. The formation of a ruthenium trimer due to the reaction of RuIV[double bond, length as m-dash]O with RuII–OH2 was fully confirmed by chemical, electrochemical and photochemical methods. Since the oxidation of the trimer was proposed to lead to catalyst decomposition, the photocatalytic water oxidation activity was rationally improved by the suppression of the formation of the trimer.

Graphical abstract: Characterization of a trinuclear ruthenium species in catalytic water oxidation by Ru(bda)(pic)2 in neutral media

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Article information

DOI
https://doi.org/10.1039/C6CC04003A
Article type
Communication
Submitted
12 May 2016
Accepted
14 Jun 2016
First published
14 Jun 2016

Chem. Commun., 2016,52, 8619-8622

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Characterization of a trinuclear ruthenium species in catalytic water oxidation by Ru(bda)(pic)2 in neutral media

B. Zhang, F. Li, R. Zhang, C. Ma, L. Chen and L. Sun, Chem. Commun., 2016, 52, 8619 DOI: 10.1039/C6CC04003A

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