Abstract
The continuous-wave CO2 laser induced gas-phase decomposition of trifluoroacetic, pentafluoropropionic and heptaftuorobutyric anhydride, sensitized by sulfur hexafluoride was studied in order to determine the course of the reactions in the absence of wall effects. The decompositions of all the compounds are assumed to involve cleavage of parent compound into acyl fluoride F(CF 2)n COF and' (CF 2)n CO2 ' biradical, the latter undergoing decay into CO and F(CF 2)n _ 1 COF compounds. The theoretical treatment of the biradical by MNDO calculations as well as trapping with ethene are presented.
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