Proceedings of the National Academy of Sciences · 1975 · 30 citations · 3 references
Natural SciencesChemistryPhysicsCrystal StructureNuclear ChemistrySpectroscopyCrystal ChemistryHyperfine StructureRadiation ChemistryRadical ReactionsHyperfine Structure AnalysisHyperfine Structure MeasurementsNuclear CouplingNuclear Quadrupole CouplingRadiation-induced Free RadicalsRadiation-induced Reaction MechanismsRoom Temperature Stability
The 33S hyperfine structure has been observed in the electron spin resonance of irradiated crystals of cysteine-HCl-H2O and of N-acetyl DL-methionine. An analysis of the results shows that in both substances the free radicals that are stable at room temperature are disulfide radicals, RCH2SS. A possible mechanism for formation of these radicals is proposed.
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