INORGANIC EXCIMER - SPECTROSCOPY, PHOTOREDOX PROPERTIES AND EXCIMERIC EMISSION OF DICYANO(4,4'-DI-TERT-BUTYL-2,2'-BIPYRIDINE)PLATINUM(II)

被引:94
作者
WAN, KT [1 ]
CHE, CM [1 ]
CHO, KC [1 ]
机构
[1] CHINESE UNIV HONG KONG,DEPT PHYS,SHA TIN,HONG KONG
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1991年 / 04期
关键词
D O I
10.1039/dt9910001077
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The complex [Pt(dtbipy)(CN)2] (dtbipy = 4,4'-di-tert-butyl-2,2'-bipyridine) has a long-lived intraligand (pi-pi*)3 excited state in fluid solutions (room-temperature lifetime at infinite dilution 3-mu-s in 1.2-dichloroethane). Excimer emission (maximum 565 nm) and photoinduced oligomerisation have been found for this platinum complex. The measured rate constant for the process [Pt(dtbipy)(CN)2]* + [Pt(dtbipy)(CN)2] --> [{Pt(dtbipy)(CN)2}2]* is 9.0 x 10(8) dm3 mol-1 s-1 in 1,2-dichloroethane at room temperature. The photophysics and photoredox properties of the excited monomer and dimer are discussed.
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页码:1077 / 1080
页数:4
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