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Citation: Liu Yang*, Xu Guangzhi, Sha Qinggui. ESR STUDY ON THE PHOTOLYSIS OF CHLOROHYDROCARBONS[J]. Acta Physico-Chimica Sinica, ;1989, 5(05): 525-530. doi: 10.3866/PKU.WHXB19890504 shu

ESR STUDY ON THE PHOTOLYSIS OF CHLOROHYDROCARBONS

1.
Institute of Chemistry; Academia Sinica; Beijing; Department of Chemistry; Tsingkua University; Beijing

Received Date: 1 February 1988
Available Online: 15 October 1989

A new kind of nitrone, 2, 4,-dinitrophenyl-t-butyl nitrone (DNPBN), has been used for investigating the photolytic mechanism of chlorohydroearbon and trapping active chlorine atom and other C-centre radicals produced therein. The results show that under the irradiation of high-pressure mercury lamp, for polychlorohydrocarbon, the more the substitute chlorine atom, the easier the homolysis of C—Cl bond of its and seldem chlorine can be trapped from mono- or dichlorohydrocarbons. On the other hand, both chlorine, a more persistent adduct (Cl—DNPBN)~· than other famillar adducts, such as (Cl—PBN)~·, can be obtained.
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