Selective synthesis and electrochemical behavior of trans(Cl)- and cis(Cl)-[Ru(bpy)(CO)(2)Cl-2] complexes (bpy = 2,2'-bipyridine). Comparative studies of their electrocatalytic activity toward the reduction of carbon dioxide

被引：86

作者：

ChardonNoblat, S

Deronzier, A

Ziessel, R

Zsoldos, D

机构：

[1] UNIV GRENOBLE 1,UMR CNRS 5630,LAB ELECTROCHIM ORGAN & PHOTOCHIM REDOX,F-38041 GRENOBLE 9,FRANCE

[2] ECOLE CHIM MAT POLYMERES,URA CNRS 466,LAB CHIM ELECT & PHOTON MOL,F-67008 STRASBOURG,FRANCE

来源：

INORGANIC CHEMISTRY | 1997年 / 36卷 / 23期

关键词：

D O I：

10.1021/ic9701975

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A synthetic procedure for the selective preparation (ca. 75% isolated yield) of trans(Cl)- and cis(Cl)-[Ru(bpy)(CO)(2)Cl-2] complexes 1 and 2, using an oligomeric [Ru(CO)(2)Cl-2](n) precursor, is described. The synthetic methodology also gives access to the cis(CO)-[Ru(bpy)(CO)(2)(C(O)OMe)Cl] complex 3. In contrast to 1, which gives strongly adherent polymeric [Ru(bpy)(CO)(2)](n) molecular films, electrochemical reduction of 2 and 3 forms dimers 5 and 6 by a one-electron reduction process accompanied by loss of a chloro ligand. Complexes 2, 3, 5, and 6 function as efficient homogeneous electrocatalysts for the selective reduction of CO2 to CO (95-97% faradaic yield) in aqueous acetonitrile.

引用

页码：5384 / 5389

页数：6

共 30 条

[1] 2,2'/6',2''-TERPYRIDINE (TERPY) ACTING AS A FLUXIONAL BIDENTATE LIGAND .3. RUTHENIUM CARBONYL HALIDE-COMPLEXES, [RUX(2)(CO)(2)(TERPY)] (X=CL, BR OR I) AND METAL TETRACARBONYL COMPLEXES [M(CO)(4)(TERPY)] (M=CR, MO OR W) - NUCLEAR-MAGNETIC-RESONANCE STUDIES OF THEIR SOLUTION DYNAMICS AND SYNTHESIS OF TRANS-[RUX(2)(CO)(TERPY)] (X=CL, BR OR L) [J].