Ruthenium(II) complex based on 4,4′-di(p-methylphenyl)-2,2′-bipyridine:: Synthesis and photoelectrochemical properties

被引：15

作者：

Li, XH

Hou, K

Duan, XF ^{[1
]}

Li, FY

Huang, CH

机构：

[1] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China

[3] Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem, Beijing 100871, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2006年 / 9卷 / 04期

基金：

中国国家自然科学基金;

关键词：

ruthenium complex; pi-conjugated polypyridine; solar cell; sensitizer;

D O I：

10.1016/j.inoche.2006.01.012

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

4,4'-Di(p-methylphenyl)-2,2'-bipyridine was conveniently synthesized from 2-bromopyridine through halogen-dance reaction, selective Kharash coupling and homo coupling of 2-bromopyridine derivative. Its corresponding ruthenium complex: cis-N,N-4,4'-di(p-methylphenyl)-2,2'-bipyridine-N,N-4,4'-dicarboxy-2,2'-bipyrine-N,N-dithiocyanato ruthenium(II) (dye-1) was also obtained and characterized by element analysis, MALDI-TOF MS and H NMR spectra. Compared with cis-N,N-2,2'-bipyridine-N,N-4,4'-dicarboxy-2,2'-bipyridine-N,N-dithiocyanato ruthenium(II), dye-1 displayed red-shifted MLCT absorptions and enhanced molar extinction coefficients for its rigid pi-conjugation. As a result, dye-1 sensitized nanocrystalline TiO2 electrode gave higher short circuit photocurrent density of 12.6 mA cm(-2) and overall photo-to-electric conversion efficiency of 5.5% (AM 1.5, 75 mW cm(-2)). (c) 2006 Elsevier B.V. All rights reserved.

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页码：394 / 396

页数：3

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