Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Март 19, 2025
In recent years, neutral NHC-stabilized boryl radicals have been investigated as reactive species in various organic transformations. However, cationic boron significantly less explored. addition, boron-centered open-shell with S > 1/2 emerged attractive synthetic targets. this study, we provide a route to an radical cation salt of the weakly coordinating [Al(ORF)4]- (RF = C(CF3)3) anion. The procedure was extended dicationic diboron derivatives Schlenk's and Thiele's hydrocarbons meta- para-phenylene coupling units between spin centers. While most known isolable biradicals singlet ground-state thermally accessible triplet state, version hydrocarbon occupies spin-state, shown by combined electron paramagnetic resonance spectroscopy density functional theory studies. Furthermore, initial reactivity studies dications elemental sulfur diphenyldiselenide are presented.
Язык: Английский