N.M.R. studies of fluorinated phenoxy radicals: Spin densities from N.M.R. linewidths

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Abstract
We have investigated the N.M.R. and E.S.R. spectra of a series of phenoxy radicals with partially fluorinated substituents. Proton and fluorine coupling constants were determined from the shifts of N.M.R. lines. The spin density in the fluorine 2p orbitals were estimated from the widths of the N.M.R. lines. The fluorine spin densities were used along with those determined for the adjacent carbon atoms to calculate spin polarization parameters.