Modulation of internuclear communication in multinuclear ruthenium(II) polypyridyl complexes

被引:11
作者
Browne, WR [1 ]
Weldon, F [1 ]
Guckian, A [1 ]
Vos, JG [1 ]
机构
[1] Dublin City Univ, Sch Chem Sci, Natl Ctr Sensor Res, Dublin 9, Ireland
关键词
ruthenium complexes; mixed valence; LMCT; spectroelectrochemistry; cyclic voltammetry; thiophenes; pyridines; triazines; bridging ligands;
D O I
10.1135/cccc20031467
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The syntheses and characterisation of a series of mononuclear and dinuclear ruthenium polypyridyl complexes based on the bridging ligands 1,3-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 1,4-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 2,5-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl] thiophene, 2,5-bis-[5-pyrazinyl-1H-1,2,4-triazol-3-yl]thiophene are reported. Electrochemical studies indicate that in these systems, the ground state interaction is critically dependent on the nature of the bridging ligand and its protonation state, with strong and weak interactions being observed for thiophene- and phenylene-bridged complexes, respectively.
引用
收藏
页码:1467 / 1486
页数:20
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