A study on fluorescence quenching of dicyanoanthracene by acenaphthenone via electron transfer - Formation mechanism of exciplex and its kinetics

被引：0
作者：
Wu, SP [1 ]
Jiang, ZQ [1 ]
Ye, JP [1 ]
机构：
[1] CHINESE ACAD SCI,INST PHOTOG CHEM,LAB PHOTOCHEM,BEIJING,PEOPLES R CHINA
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 1996年 / 17卷 / 04期
关键词：
fluorescence quenching; exciplex; photoinduced electron transfer mechanism; kinetics;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The kinetics and mechanism of exciplex formation of 9,10-dicyanoanthracene (DCA) by acenaphthenone (ANO) have been studied. The photokinetics of exciplex(ANO/DCA) was determined with transient single-photon counting technique, The measured rate constants based on biexponential decay reveal that the forward electron transfer(ET) proceeds much faster than the reverse ET and other decay processes while ANO acts as an electron donor, In addition, the diffusion-controlled steady-state fluorescence quenching is mainly caused by ANO/DCA exciplex formation via photoinduced ET.
引用
收藏
页码：562 / 565
页数：4
相关论文
共 11 条
  • [1] BIEZOK I, 1989, J PHOTOCH PHOTOBIO A, P265
  • [2] FOX MA, 1988, PHOTOINDUCED ELECT A, P245
  • [3] GORDON M, 1975, EXCIPLEX, P63
  • [4] CONTACT AND SOLVENT-SEPARATED GEMINATE RADICAL ION-PAIRS IN ELECTRON-TRANSFER PHOTOCHEMISTRY
    GOULD, IR
    YOUNG, RH
    MOODY, RE
    FARID, S
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (05) : 2068 - 2080
  • [5] HORSPOOL WM, 1984, SYNTHETIC ORGANIC PH, P145
  • [6] JIANG ZQ, 1988, ACTA CHIM SINICA, V46, P96
  • [7] Lakowicz J. R., 1983, PRINCIPLES FLUORESCE, P259
  • [8] PERRIN DD, 1966, PURIFICATION LABORAT
  • [9] REHM D, 1970, ISRAEL J CHEM, V8, P259
  • [10] URBANSKI T, 1965, KOCZNIKIA CHEM, V39, P1447
12