Anion-Directed Self-Assembly of Two Half-Sandwich Ruthenium-Based Metallamacrocycles as Catalysts for Water Oxidation

被引：17

作者：

Yu, Wei-Bin ^{[1
]}

He, Qing-Ya ^{[1
]}

Shi, Hua-Tian ^{[1
]}

Yuan, Guozan ^{[1
]}

Wei, Xianwen ^{[1
]}

机构：

[1] Anhui Univ Technol, Sch Chem & Chem Engn, Anal & Testing Cent Facil, Maanshan 243002, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2015年 / 10卷 / 01期

关键词：

half-sandwich complexes; macrocycles; metallacycles; ruthenium; water oxidation; HOST-GUEST PROPERTIES; PENTAMETHYLCYCLOPENTADIENYL GROUP; ENANTIOSELECTIVE SEPARATION; SUPRAMOLECULAR CHEMISTRY; IRIDIUM(III) COMPLEXES; STEPWISE FORMATION; COORDINATION; CAGES; BEARING; RHODIUM(III);

D O I：

10.1002/asia.201402973

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The binuclear [(6)-(cymene)Ru(L)](2)(OTf)(2) (TfO-=trifluoromethanesulfonate) and tetranuclear [(6)-(cymene)Ru(L)](4)(NO3)(4) metallacycles were prepared by treating the pyridyl-substituted 8-hydroxyquinoline ligand (E)-2-[2-(pyridin-3-yl)vinyl]quinolin-8-ol (HL) with [(p-cymene)Ru(-Cl)Cl](2) in the presence of AgOTf or AgNO3. The molecular structures of these complexes were confirmed by single-crystal X-ray diffraction, which revealed that both complexes have macrocycle frameworks induced by the TfO- and NO3- counteranions, respectively. The electrochemical properties of the two metallacycles were investigated by cyclic voltammetry, which showed that they have great potential as catalysts for water oxidation. Good efficiency was obtained by utilizing the nitrate complex as a water oxidation catalyst in the presence of a Ce-IV salt as an oxidant at high pH values.

引用

页码：239 / 246

页数：8

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