Imaging Science and Photochemistry ›› 1998, Vol. 16 ›› Issue (1): 15-21.DOI: 10.7517/j.issn.1674-0475.1998.01.15

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A STUDY OF PHOTOINDUCED ELECTRON TRANSFERBETWEEN ANTHRAQUINONE, N,NDIETHYLANILINE,METHYL VIOLGEN AND HYPERICIN

XIA Guangming, HE Xuezhong, ZHOU Yalin, ZHANG Manhua, SHEN Tao   

  1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China
  • Received:1997-03-13 Revised:1997-04-24 Online:1998-02-20 Published:1998-02-20

Abstract: Hypericin(HYP) is a derivative of polyhydroxy substituted perylenequinones. In acetonitrile,the fluorescence of HYP can be quenched by electron donor: N,N diethylaniline and acceptors: methyl viologen,anthraquinone,indicating that HYP can act either as a electron acceptor like quinones or as a electron donor like phenols. HYP maybe forms charge transfer complex in ground state with anthraquinone which has a plane configurition and interacts with it in the different way.

Key words: hypericin, photoinduced electron transfer, fluorescence quenching