The Radiolysis of Binary Mixtures of Tetrahydrofuran with Benzene, Thiophene, Pyridine, and Nitrobenzene

Abstract

Binary mixtures of tetrahydrofuran (THF) with benzene, thiophene, and nitrobenzene were subjected to radiolysis with γ-rays. The THF–benzene mixture was also irradiated with 28.6 MeV 4He- and 90.9 MeV 12C-ions. For THF–benzene mixtures, similar deviations of G(H2) from the mixture law were observed for all the radiolyses; these results are regarded as being due to energy transfer from THF+, the precursor of hydrogen, to benzene. The total ionization yield of THF was calculated as 3.0–3.3 in G-units, irrespective of radiation and additives. This is on the basis of Hardwick’s procedure, in which the deviations of G(H2) are divided by the efficiency of the energy transfer. This result also indicates that the total ionization yield is independent of the nature of radiation, whose LET range is from 0.02 to 49.2 eV/Å.