γ-Radiolysis of cyclohexane with electron scavengers. VII. Perfluorocyclohexane and perfluorobenzene as electron scavengers

Publisher Website
Google Scholar
Abstract
The room temperature, liquid phase radiolysis of cyclohexane has been investigated using perfluorocyclohexane (C6F12) and perfluorobenzene (C6F6) as electron scavengers. Yields of the respective monohydrofluorocarbons were investigated over several orders of magnitude scavenger concentration. The C6F11H yield from the C6F12–cyclohexane system has previously been shown to result from electron capture by C6F12. The data over the extended concentration range were used to calculate a total ion yield of 4.3 ± 0.2 G units and a free ion yield of 0.14 ± 0.02 G units. With C6F6 as an electron scavenger, hydrogen, cyclohexene, and dicyclohexyl yields were all reduced. However, C6F5H yields were much lower than the C6F11H yields from C6F12. On changing the neutralization step by adding the proton scavenger ethanol, C6F5H yields were obtained equal to the C6F11H yields from C6F12. Thus C6F6 is as efficient an electron scavenger as C6F12. Since a change in the neutralization process produces a large change in yield, it is likely that C6F5H (or C6F5) is produced in the neutralization process.

This publication has 0 references indexed in Scilit: