Gas phase radiation chemistry of pentafluoroethyl iodide

The gamma radiolysis of gaseous C2F5I was studied at 50 torr and 240C, both pure and with added HI. In all, 17 products were formed in the radiolysis. For the pure system the major radiolytic products and their initial G values are listed. It was observed that the addition of approximately 5% HI sharply increased the G values of some products, while decreasing other product yields. Results are discussed in terms of ionic fragmentation and ion-molecule chemistry of C2F5I, as observed in a parallel investigation, as well as postulated bond-rupture processes of neutral excited species and subsequent displacement and combination reactions. (author)