Reactions of hydroxyl radicals with trichloroethene and tetrachloroethene in argon matrices at 12 KWiltshire, K.S., Almond, M.J. and Mitchell, P.C.H. (2004) Reactions of hydroxyl radicals with trichloroethene and tetrachloroethene in argon matrices at 12 K. Physical Chemistry Chemical Physics, 6 (1). pp. 58-63. ISSN 1463-9076 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1039/b310495h Abstract/SummaryIrradiation of argon matrices at 12 K containing hydrogen peroxide and tetrachloroethene using the output from a medium-pressure mercury lamp gives rise to the carbonyl compound trichloroacetyl chloride (CCl3CClO). Similarly trichloroethene gives dichloroacetyl chloride ( CCl2HCClO) - predominantly in the gauche form - under the same conditions. It appears that the reaction is initiated by homolysis of the O-O bond of H2O2 to give OH radicals, one of which adds to the double bond of an alkene molecule. The reaction then proceeds by abstraction of the H atom of the hydroxyl group and Cl-atom migration. This mechanism has been explored by the use of DFT calculations to back up the experimental findings. The mechanism is analogous to that shown by the simple hydrocarbon alkenes.
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