A trinuclear ruthenium complex as a highly efficient molecular catalyst for water oxidation

被引：23

作者：

Zhang, L. L. ^{[1
]}

Gao, Y. ^{[1
]}

Liu, Z. ^{[1
]}

Ding, X. ^{[1
]}

Yu, Z. ^{[1
]}

Sun, L. C. ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, State Key Lab Fine Chem, Dalian 116024, Peoples R China

[2] KTH Royal Inst Technol, Sch Chem Sci & Engn, Dept Chem, S-10044 Stockholm, Sweden

来源：

DALTON TRANSACTIONS | 2016年 / 45卷 / 09期

基金：

中国国家自然科学基金;

关键词：

OXYGEN; PHOTOSYNTHESIS; GENERATION; MECHANISM; EVOLUTION; LIGANDS;

D O I：

10.1039/c5dt04233j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A trinuclear ruthenium complex, 3, was designed and synthesized with the ligand 2,2'-bipyridine-6,6'-dicarboxylic acid (bda) and we found that this complex could function as a highly efficient molecular catalyst for water oxidation in homogeneous systems. This trinuclear molecular water oxidation catalyst, 3, displayed much higher efficiencies in terms of turnover numbers and initial oxygen evolution rate than its counterparts, a binuclear catalyst, 2, and a mononuclear catalyst, 1, in both chemically driven and photochemically driven water oxidation based on either the whole catalytic molecules or just the active Ru centers. The reasons for the superior performance of catalyst 3 were discussed and we believe that multiple Ru centers in a single molecule are indeed beneficial for increasing the probability of the formation of O-O bonds through an intramolecular radical coupling pathway.

引用

页码：3814 / 3819

页数：6

共 25 条

[1] DINUCLEATING, TRINUCLEATING, AND TETRANUCLEATING PYRIDYL LIGANDS WHICH FACILITATE MULTICENTER MAGNETIC EXCHANGE BETWEEN PARAMAGNETIC MOLYBDENUM CENTERS [J].