Persistent phosphinyl radicals featuring a bulky amino substituent and the 2,6-bis(trifluoromethyl)phenyl group

Dumitrescu A, Rudzevich VL, Romanenko VD, et al. Persistent phosphinyl radicals featuring a bulky amino substituent and the 2,6-bis(trifluoromethyl)phenyl group. INORGANIC CHEMISTRY. 2004;43(21):6546-6548.Persistent phosphinyl radicals featuring the 2,6-bis(trifluoromethyl)-phenyl group were prepared and characterized. Their electronic structure was theoretically investigated, and their low-temperature dimerization into the corresponding diphosphines was found to be strongly inhibited when the sterically very demanding (tert-butyl)-(trimethylsilyl)amino substituent was used