EPR of gamma irradiated single crystals of amphi-chloroglyoxime

Abstract

γ-irradiated single crystals of amphi-chloroglyoxime were investigated by the electron paramagnetic resonance (EPR) between 123 and 400 K temperature. Paramagnetic species produced in the crystals were attributed to the R–HCĊNOH radical and relevant spectra were found to be temperature independent. The g-factor and hyperfine coupling constants of the R–HCĊNOH radical were found to be almost isotropic with the average values g = 2.0009, a _CN = 31.89 G, a _HC = 23.83 G, a _OH = 9.49 G and the spin densities .

Keywords:

• EPR
• Amphi-chloroglyoxime
• Spectroscopic splitting factor
• Isotropic hyperfine coupling constant
• Spin density