γ-Radiolysis of hydrocarbons using perfluorocyclohexane as an electron scavenger: determination of the free ion yields

The room temperature, liquid phase radiolysis of n-hexane, 3-methylpentane, and 2,2,4-trimethyl-pentane has been examined using perfluorocyclohexane as an electron scavenger. Yields of C6F11H and C6F11CH3 were determined for scavenger concentrations below 5 × 10−3 M, and from these results free ion yields of 0.08, 0.17, and 0.37 G units were deduced for n-hexane, 3-methylpentane, and 2,2,4-trimethylpentane, respectively. These results are in good agreement with those obtained by other methods.