EPR study of irradiated 4-chloromethyl pyridinium chloride

Abstract

Single crystals of 4-choloromethyl pyridinium chloride were investigated between 123 and 300 K by the electron paramagnetic resonance method after being damaged at 296 K by γ-irradiation. The paramagnetic species was attributed to the cation radical. The principal values of the hyperfine coupling tensor of the unpaired electron with these ring atoms, and the principal values of the g tensor were determined. The results were found to be in good agreement with the existing literature data and theoretical predictions.