RESONANT LINE NARROWING IN RU(II) TRIS(3,3'-BIISOQUINOLINE)

被引：16
作者：
RIESEN, H
KRAUSZ, E
机构：
[1] Research School of Chemistry, The Australian National University, Canberra, ACT 2601
来源：
CHEMICAL PHYSICS LETTERS | 1990年 / 172卷 / 01期
关键词：
D O I：
10.1016/0009-2614(90)87207-8
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：
Luminescence and excitation line narrowing experiments of Ru(i-biq)2+3 and the free i-biq ligand in glassy matrices are compared. The Zeeman effect of the resonantly narrowed luminescence spectrum unequivocally establishes the triplet ligand-centred (3LC) nature of the lowest-excited state in Ru(i-biq)2+3. The results confirm an isotropic g value close to 2, a small zero-field splitting and a slow spin-lattice relaxation with respect to the average lifetime of the three spin sublevels. The homogeneous linewidth of the 3LC transition in Ru (i-biq)2+3 in dimethyl sulfoxide: glycerol 1:1 (v/v) is 260 ±50 MHz at 1.5 K and its temperature dependence is proportional to T1.4±0.2. © 1990.
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页码：5 / 9
页数：5
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