RADIOLYSIS OF CCl_3Br IN MIXED HYDROCARBON MATRICES AT 77 K

摘要

In this article the results of the radiolysis of CCl_3Br in the mixed hydrocarbon matrices (methylcyclohexane-iso-pentane and 3-methylpentane-iso-pentane) at 77 K are presented. Based on the results, the reaction of CCl_3—Br~- with the primary RH~+ cation leading to the form of (CCl_3~+—Br~-) should be rather excluded as a source of VIS bands formation in the irradiated CCl_3Br-alkane mixtures at low temperature. A new interpretation of the results based on the solid phase ionization potential is proposed. It may help in understanding the reactions occurring in the irradiated CCl_3 Br-alkane systems and the positive hole transfer between solvent cation and solute molecule at 77 K.