Abstract
Reaction of the lithium dithiolene radical 2(•) with the imidazolium salt [{(Me)CN(i-Pr)}(2)CH](+)[Cl](-) (in a 1:1 molar ratio) gives the first stable naked anionic dithiolene radical 3(•), which, when coupled with hexasulfide, [{(Me)CN(i-Pr)}(2)CH](+)(2)[S(6)](2-) (4), and N-heterocyclic silylene 5, unexpectedly results in synergic THF ring-opening via a radical mechanism.