Double electron-electron resonance in electron spin echo and spatial distribution of radicals forming in irradiated solid cyclohexane

The method of double electron-electron resonance in electron spin echo (DEER ESE) is applied for the first time for investigation into group radical distribution in solid matrices under the presence of distribution according to the number of spins in the group. Cyclohexyl radicals formed under solid polycrystalline cyclohexane gamma radiolysis at 77 K are investigated. It is detected that the average number of cyclohexyl radicals in the group falls within 1.3-2.2 range; 75-90 % of radicals are located lither in isolation or in pairs and 10-25 % - in groups with spin number in a group from 3 up to 20-30