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Citation:
Zhang Lin-Yang, Zhang Jia-Mu, . The Effect of Light Intensity on the Photoinduced BrC2F4Br+C2F4 Telomerization Reaction[J]. Acta Physico-Chimica Sinica,
;1995, 11(04): 308-314.
doi:
10.3866/PKU.WHXB19950405
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BrC2F4Br+C2F4 reaction induced by different light source (KrF laser, Xe-lamp, low pressure Hg-lamp) has been investigated. Experiments show that the reaction product distribution depends not only on reaction composition, but on light intensity and light source as well. A reaction mechanism has been suggested and the rate constant of the addition reaction has been calculated by kinetic analysis, for BrC2F4+C2F4→BrC4F8 kadd=(2±1)×107cm3•mol-1•s-1 (room temp.); Br(C2F4)n≧2+C2F4 addition reaction, kadd=(1.2±0．4）×107Cm3•mol-1•s-1．
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