Ground and excited state structural isomers in trans-[Ru(bpy)2(L)2](PF6)2

被引：13
|
作者：
Thompson, DW [1 ]
Schoonover, JR [1 ]
Graff, DK [1 ]
Fleming, CN [1 ]
Meyer, TJ [1 ]
机构：
[1] Univ N Carolina, Dept Chem, Venable & Kenan Labs, Chapel Hill, NC 27599 USA
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2000年 / 137卷 / 2-3期
关键词：
trans-ruthenium polypyridyl complexes; structural isomers; temperature dependence; MLCT excited states;
D O I：
10.1016/S1010-6030(00)00347-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Spectroscopic evidence is presented for different structural isomers of trans-[Ru(bpy)(2)(L-1)(L-1)](2+) (L-1 or L-2 = 4-Etpy (1), py-PTZ) in which bpy is planar or nonplanar compared to cis-[Ru(bpy)(2)(py)(2)](2+) or [Ru(bpy)(3)](2+) in which bpy is planar. The nonplanar form is dominant in the ground states in low temperature glasses. The two forms appear to be in a temperature dependent equilibrium in 4:1 (v/v) ethanol/methanol at higher temperatures. The nonplanar form is converted into the planar form in the MLCT excited state(s) of 1. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：131 / 134
页数：4
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