Imaging Science and Photochemistry ›› 1985, Vol. 3 ›› Issue (4): 43-47.DOI: 10.7517/j.issn.1674-0475.1985.04.43

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A STUDY OF ESR SPECTRA OF ACTIVE RADICALS FORMED IN PHOTOCHEMICAL HYDROGEN ABSTRA-CTION REACTION BETWEEN ALCOHOL AND BENZOPHENONE

XU GUANG-ZHI1, XU HONG-LIN1, LIU YANG2, SONG XIN-QI2   

  1. 1. Institute of Chemistry, Academia Sinica;
    2. Department of Chemistry and Chemical Engineering, Qinghua University
  • Received:1984-10-15 Revised:1985-04-17 Online:1985-11-20 Published:1985-11-20

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Abstract: Active radicals formed in the photochemical hydrogen abstraction between alcohol and benzophenone have been studied with the combination of ESR spectroscopy and spin trapping technique. The results show that: 1. For n-CnH2n+1OH (n=1, 2,…8), benzophenone abstrats hydrogen from the α-C of alcohol to form n-Cn-1 H2n-1 CHOH radicals. 2. For (CH3)2CH(CH2)nOH (n=0, 1,2), benzophenone abstracts hydrogen fromtertiary carbon of alcohol to form (CH3)2C(CH2)nOH radicals. 3. For RCH2OH (R=CH2=CH, C6H5), benzophenone abstracts hydrogen from α-Cof RCH2OH to form RCHOH.

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