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Electron Spin Resonance of Trapped Radicals and the Photoinduced Radical Conversion in γ‐Irradiated 3‐Methylpentane Glasses at 77°K
Author(s) -
Lin D. P.
Publication year - 1974
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.197400027
Subject(s) - chemistry , radical , electron paramagnetic resonance , photochemistry , hyperfine structure , irradiation , deuterium , yield (engineering) , isotropy , nuclear magnetic resonance , atomic physics , organic chemistry , optics , physics , materials science , nuclear physics , metallurgy
Studies on the isotropic hyperfine splitting constants of protiated and deuterated 3‐methylpentyl radicals produced by γ‐ray accompanied with the radical yield determinations reveal that the radicals are distributed in clusters in the matrix. A tentative mechanism with the migration of positive hole is proposed for the formation of UV‐induced new radicals following γ‐irradiation in 3‐methylpentane glasses at 77° K ; and to account for all the experimental observation.