Spin‐Spin Interactions of Trapped Radicals Produced in 3‐Methylpentane by Gamma‐Irradiation at 77°K

Abstract

EPR microwave power saturation technique has been applied to the systems of radiation-induced radicals in protiated and wholely deuterated 3-methylpentane to obtain the information concerning the high local spin concentration and radiation energy deposition mechanism. Evidences of spin-spin interactions have been given from the studies of isothermal decay of these trapped radicals at 77°K, The annealing of the matrix is shown to have almost no effect on the relaxation times of radicals. The influence of nuclear magnetic moment on the spin-lattice relaxation process of radicals is revealed and discussed on the basis of experimental results from the deuteration of the compound studied.