Photoinduced Oxidation Reaction of Benzotrifluoride with OH Radical by the Laser Flash Method |
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Authors: | Ren‐Xi ZHANG Zhao‐Lian YE Yan SHEN Wen‐Bo DONG Hui‐Qi HOU |
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Affiliation: | 1. Environmental Science Institute, Fudan University, Shanghai 200433, China;2. Tel.: 0086‐021‐65642293;3. Fax: 0086‐021‐65643849 |
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Abstract: | The optical transient and kinetics characterizations of the transients formed in the reaction of OH with benzotrifluoride (BTF) were performed by a laser flash photolysis technique. The results indicated that the formation of π‐type adduct of C6H5(OH)CF3 was the major reaction channel, and the δ‐type adduct of C6H5CF3OH formation was an additional minor process in the oxidation reaction of BTF attacked by OH radicals yielded from the photolysis of H2O2. Addition of OH to the CF3 group led to the fluoride ion elimination to yield α,α‐difluorophenylcarbinol (C6H5CF2OH). Trifluoromethylphenol (HOC6H4CF3) of meta‐, para‐ and ortho‐substituted isomers resulted from the addition of OH to the BTF aromatic ring. |
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Keywords: | benzotrifluoride transient absorbance spectrum laser flash photolysis hydroxyl radical |
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