A Ru diphosphonato complex with a metal-metal bond for water oxidation

Guo Chen; Ting Fan; Bin Liu; Meng Xue; Jing-Jing Wei; Shi-Rui Kang; Hai-Xia Tong; Xiao-Yi Yi

doi:10.1039/d0dt04150e

A Ru diphosphonato complex with a metal-metal bond for water oxidation

Dalton Trans. 2021 Feb 16;50(6):2018-2022. doi: 10.1039/d0dt04150e.

Authors

Guo Chen¹, Ting Fan², Bin Liu¹, Meng Xue¹, Jing-Jing Wei¹, Shi-Rui Kang¹, Hai-Xia Tong³, Xiao-Yi Yi¹

Affiliations

¹ College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Chemical Power Sources, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, Hunan 410083, P. R. China. xyyi@csu.edu.cn.
² School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510641, P. R. China.
³ School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, P. R. China.

PMID: 33554978
DOI: 10.1039/d0dt04150e

Abstract

Unlike [Ru2(μ-O2CCH3)4], the structurally analogous water-soluble RuII,III2 diphosphonato complex K3[Ru2(hedp)2(H2O)2] (K3·1) is only involved in stoichiometric water oxidation with a maximum 67% O2 yield under CAN/HNO3 solution (pH 1.0) for 2.5 h. The water oxidation mechanism and intermediate products were ascertained by UV-vis, ESI-MS and DFT calculation.