Mechanisms of excimer formation in poly(acenaphthylene)

被引:22
作者
Chen, M
Ghiggino, KP [1 ]
Smith, TA
Thang, SH
Wilson, GJ
机构
[1] Univ Melbourne, Sch Chem, Melbourne, Vic 3010, Australia
[2] CSIRO Mol Sci, Clayton, Vic 3169, Australia
关键词
D O I
10.1071/CH04087
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Excimer ( excited state dimer) formation mechanisms in solution have been investigated for a series of acenaphthyl-containing compounds comprising dimers, higher oligomers, and a poly( acenaphthylene) (PAcN) homopolymer. Excimer fluorescence is observed only for dimers with a threo-diisotactic arrangement of the acenaphthyl groups indicating that interactions between nearest-neighbour chromophores are able to play a role in excimer formation in PAcN. An increase in excimer emission is observed with increasing chain length and attributed to additional excimer formation and energy migration processes.
引用
收藏
页码:1175 / 1177
页数:3
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