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Electron Paramagnetic Resonance of the CH2NH3 Free Radical in γ-Ray Irradiated Methylammonium Alum Single Crystals Author: Jui-hsiang Chang, Jiang-tsu Yu

Abstract：

A stable free radical which can be identified as ‧CH2NH3+ has been observed in γ-ray irradiated crystals of methylammonium aluminum Alum (MASD). The isotropic components of the hydrogen and nitrogen hyperfine splittings were mea-sured and these constants were used to calculate the s -orbital part of the spin density of the unpaired electron in the free radical.

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