Luminescent Cyanoruthenate(II)-Diimine and Cyanoruthenium(II)-Diimine Complexes

被引：17
|
作者：
Feng, Hua [1 ]
Zhang, Feng [1 ,2 ]
Lai, Sze-Wing [1 ]
Yiu, Shek-Man [1 ]
Ko, Chi-Chiu [1 ,2 ]
机构：
[1] City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R China
[2] USTC CityU Joint Adv Res Ctr, Adv Lab Environm Res & Technol ALERT, Suzhou 215123, Jiangsu, Peoples R China
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2013年 / 19卷 / 45期
关键词：
coordination chemistry; electrochemistry; luminescence; ruthenium; solvatochromism; INTRAMOLECULAR ENERGY-TRANSFER; PHOTOPHYSICAL PROPERTIES; RHENIUM(I) COMPLEXES; SOLVENT; CYANIDE; LIGAND; DERIVATIVES; CHROMOPHORE; CARBONYL; POLARITY;
D O I：
10.1002/chem.201302216
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
To improve the emission and excited-state properties of luminescent cyanometalates, new classes of highly solvatochromic luminescent cyanoruthenium(II) and cyanoruthenate(II) complexes of the general formulae [Ru(PR3)(2)(CN)(2)(NN)] and K[Ru-(PR3)(CN)(3)(NN)], respectively, were developed. These complexes could be readily synthesized through the ligand-substitution reaction of K-2[Ru(CN)(4)(PR3)(2)] with a diimine ligand. The geometrical isomerism of these complexes was characterized by using various spectroscopic techniques. Their photophysical properties, solvatochromism, and electrochemistry have also been investigated. Our detailed study showed that many of these complexes exhibited extremely environmentally sensitive emissions and significantly improved emission quantum efficiencies and lifetimes compared with the well-studied tetracyanoruthenate systems.
引用
收藏
页码：15190 / 15198
页数：9
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