EXCITED-STATE ACID-BASE CHEMISTRY OF (ALPHA-DIIMINE)CYANOTRICARBONYLRHENIUM(I) COMPLEXES

被引：83
|
作者：
LEASURE, RM
SACKSTEDER, L
NESSELRODT, D
REITZ, GA
DEMAS, JN
DEGRAFF, BA
机构：
[1] UNIV VIRGINIA,DEPT CHEM,CHARLOTTESVILLE,VA 22901
[2] JAMES MADISON UNIV,DEPT CHEM,HARRISONBURG,VA 22807
来源：
INORGANIC CHEMISTRY | 1991年 / 30卷 / 19期
关键词：
D O I：
10.1021/ic00019a031
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The excited-state acid-base photophysics of rhenium(I) complexes of the form LRe1(CO)3CN (L = 1,10-phenanthroline, 2,2'-bipyridine, and 4,7-dimethyl-1,10-phenanthroline) was investigated. The emitting state can be tuned from a metal-to-ligand charge-transfer type to pi-pi* phosphorescence by varying the acidity, L, and temperature. This alteration of excited-state type results in large changes in emission spectra and lifetimes, which suggest use as environmental probes. In low-temperature glasses, site heterogeneity must be invoked to account for the luminescence decay data.
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收藏
页码：3722 / 3728
页数：7
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