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Citation: ZHANG Lu, YOU Chang-Jiang, CHEN Jin-Ping, YANG Guo-Qiang, LI Yi. Dendritic Bis-(8-hydroxyquinoline) Derivatives: Studies on the Fluorescence Quenching and Decay[J]. Acta Physico-Chimica Sinica, ;2006, 22(03): 326-329. doi: 10.1016/S1872-1508(06)60008-9 shu

Dendritic Bis-(8-hydroxyquinoline) Derivatives: Studies on the Fluorescence Quenching and Decay

1.
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China; Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China; Graduate School of the Chinese Academy of Sciences, Beijing 100049, P. R. China

Received Date: 27 September 2005
Available Online: 10 March 2006

The fluorescence quenching and the fluorescence decay of a series of dendritic bis-(8-hydroxyquinoline) derivatives (Gn-QMQ, n=1~3) were studied. The quenching rate constant decreased and fluorescence lifetime increased with the generation n increase, which resulted from an increased site-isolating effect of the dendritic structure on the core. Photophysical studies in different solvents indicated that there was an enhanced site-isolating effect in CH3CN.
- Poly(aryl ether) dendrimer; 8-hydroxyquinoline; Fluorescence quenching; Fluorescence decay
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