FLUORESCENCE BEHAVIOR OF PYRENE SUBSTITUTED TRI-SILANES AND HEXA-SILANES

被引：32

作者：

DECLERCQ, D ^{[1
]}

DESCHRYVER, FC ^{[1
]}

MILLER, RD ^{[1
]}

机构：

[1] IBM CORP,DIV RES,ALMADEN RES DIV,SAN JOSE,CA 95120

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 186卷 / 06期

关键词：

D O I：

10.1016/0009-2614(91)90453-G

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：

The absorption and emission spectra of pyrene substituted tri- and hexa-silanes are reported. Sigma(Si-Si) --> pi*(pyrene) charge-transfer fluorescence is observed for 1-(1-pyrenyl) tridecamethylhexasilane but not for 1-(1-pyrenyl)hepta-methyltrisilane. This is explained by the difference in oxidation potential of the tri- and hexa-silane chain. The emission of the bichromophoric systems 1,6-di(1-pyrenyl)dodecamethylhexasilane and 1-(4-N,N-dimethylanilino)-6-(1-pyrenyl)dodecamethylhexasilane is mainly determined by the sigma --> pi* charge transfer. 1,3-di-(1-pyrenyl)hexamethylhexasilane and 1-(4-N,N-dimethylanilino)-3 (1-pyrenyl)hexamethyltrisilane show respectively excimer and exciplex emission.

引用

页码：467 / 473

页数：7

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