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Spin‐Spin Interactions of Trapped Radicals Produced in 3‐Methylpentane by Gamma‐Irradiation at 77° K
Author(s) -
Lin D. P.
Publication year - 1975
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197500002
Subject(s) - chemistry , radical , electron paramagnetic resonance , photochemistry , deuterium , irradiation , nuclear magnetic resonance , chemical physics , atomic physics , organic chemistry , nuclear physics , physics
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.