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

页码：131 / 134

页数：4

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