Chinese Journal of Magnetic Resonance ›› 1997, Vol. 14 ›› Issue (3): 205-210.

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TIME-RESOLVED ESR STUDY ON THE PHOTO-CHEMICAL PROCESS OF PHENOTHIAZINE AND P-BENZOQUINONE SYSTEM

He Guanglong1, Li Xinyue2, Chen CiPing3, Xu Guangzhi1   

  1. 1 Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080;
    2 Department of Chemistry and Chemical Engineering, Dalian University, Dalian 116622;
    3 Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101
  • Received:1996-12-13 Published:1997-06-05 Online:2018-01-22

Abstract: In this paper, the time-resolved ESR technique has been used to study the photochemical process of phenothiazine and p-benzoquinone in ethylene glycol. From the CIDEP spectra and the thermodynamic calculations, we come to the conclusion that the electron transfer and the hydrogen abstraction proceeded simultaneously and competed with each other during the photolysis.

Key words: Electron transfer, Radical, ESR, CIDEP