Bl. Tumanskii et al., AN EPR AND MOLECULAR MECHANICS STUDY OF RADICAL ADDUCTS OF PHOSPHONYLRADICALS WITH 2-HYDROPERFLUORO-4-METHYL-2-PENTENE AND 4,4-DIMETHYL-2-PENTENE, Bulletin of the Russian Academy of Sciences, Division of Chemical Sciences, 41(11), 1992, pp. 2008-2011
EPR spectra of radical adducts of phosphonyl radicals with 2-hydroperf
luoro-4-methyl- and 4,4-dimethyl-2-pentene have been studied. The mole
cular mechanics method has been used to determine the preferred confor
mation of the (CF3)2CF-CF-HCF3P(O)(OMe)2 radical. The eclipsed conform
ation of the C-P bond and 2p(z)-orbital of an unpaired electron is sta
bilized due to steric factor and hyperconjugation.