Dependence on electronic structure of the site of proton transfer from alkane radical cations: nature of heptyl radicals formed by proton transfer from heptane radical cations to heptane molecules in trichlorofluoromethane matrixes at 77 K

Abstract

A study is made of ESR spectra obtained after γ-irradiation of heptane at various concentrations in CCl 3 F. At low concentration, the ESR spectrum mainly consists of a triplet due to heptane radical cations in the extended conformation. Superimposed on this triplet is a low-intensity spectrum due to heptyl radicals; the signal intensity and relative contribution to the paramagnetic absorption of this heptyl radical spectrum increases drastically with increasing concentration of heptane