Spectral Properties of Ruthenium(II) Mixed-Ligands Complexes with 2,2'-Bipyridyl and Phosphines

被引：0
|
作者：
A. Yu. Ershov
S. V. Litke
A. S. Litke
T. V. Mezentseva
Ya. M. Grigor'ev
G. N. Lyalin
机构：
[1] St. Petersburg State University,
来源：
Russian Journal of General Chemistry | 2001年 / 71卷
关键词：
SiO2; Ruthenium; PPh3; Phosphine; Triplet State;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Spectral-kinetic luminescence characteristics of the complexes cis-[Ru(bpy)(dppe)X2], cis- [Ru(bpy)2(PPh3)X](BF4) and cis-[Ru(bpy)2X2] [bpy = 2,2'-bipyridyl, dppe = 1,2-bis(diphenylphosphino)ethane, PPh3 is triphenylphosphine, X = NO2- and CN-] in the ethanol-methanol 4:1 mixtures and adsorbed on the oxide SiO2 or porous polyacrylonitrile polymer surface were studied. Luminescence and luminescence exitation spectra were registered at 77 and 293 K in 230-750 nm range and the luminescence decay time was measured. Introduction of phosphine ligands to the ruthenium(II) bipyridyl complexes inner sphere leads to rise in singlet and triplet state energy at the charge transfer from Ru(II) to 2,2'-bipyridyl in the series [Ru(bpy)2X2] < Ru(bpy)2(PPh3)X](BF4) < [Ru(bpy)(dppe)X2]. The complex adsorption on SiO2 or polyacrylonitrile surface affects noticeably the luminescence spectro-kinetic characteristics.
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页码：1329 / 1332
页数：3
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