Electron spin resonance studies of radiation damage. Part I. An alternating linewidth effect for the (CH3)2ĊOH radical in gamma-irradiated acetone at low temperatures

Abstract

The e.s.r. spectrum of the (CH3)2ĊOH radical showed a drastic temperature dependence of linewidth in the range −196 to −100 °C, this being particularly pronounced for the M1 = ±2 lines. Possible mechanisms are discussed in terms of restricted rotation of the methyl groups and of the OH groups.