LUMINESCENCE QUENCHING OF THE BIS(2,2'-BIPYRIDINE)AQUO-2,2'-BIPYRIDINEIRIDIUM(III) ION AND ITS CONJUGATE BASE

被引：27

作者：

BERGERON, SF ^{[1
]}

WATTS, RJ ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT CHEM,SANTA BARBARA,CA 93106

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1979年 / 101卷 / 12期

关键词：

D O I：

10.1021/ja00506a002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Quenching of Ir(bpy)2(H2O)(bpy)3+ and Ir(bpy)2(OH)(bpy)2+ by a variety of charged metal complexes and neutral biacetyl has been studied. Stern-Volmer and quenching constants have been determined and diffusional rate constants for each donor-acceptor combination have been estimated. Quenching efficiencies are comparable to those of Ru(bpy)32+ with similar quenchers. Quenching is believed to occur by both energy-transfer and electron-transfer mechanisms. The reduction potential of the luminescent state of lr(bpy)2(OH)(bpy)2+ is estimated to be +1.84 V. © 1979, American Chemical Society. All rights reserved.

引用

页码：3151 / 3156

页数：6

共 54 条

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