Dalton communications. Convenient preparations of the mixed 1,3,2,4-/1,2,3,5-dithiadiazolylium salt [SNSNC–C6H4–CNSSN][AsF6]2 and the first mixed free radical, p-[SNSNC–C6H4–CNSSN]2˙
Abstract
The salt [p-NCC6H4–[graphic omitted]]Cl {prepared by reaction of Li[p-NCC6H4C(NSiMe3)2] with SCl2} was converted into [p-NCC6H4–[graphic omitted]]AsF6(with AgAsF6) and then reacted with [SNS]AsF6 to provide [[graphic omitted]–C6H4–[graphic omitted]][AsF6]2 in 92% recovered yield. Complete reduction of this material produced the first mixed 1,3,2,4-/1,2,3,5-dithiadiazole diradical, [[graphic omitted]–C6H4–[graphic omitted]]2˙.