Dithiadiazole (original) (raw)

In chemistry, dithiadiazoles are a family of heterocyclic compounds with the formula RCN2S2. Although several isomers are possible, the 1,2,3,5-dithiadiazoles have received greater attention. The neutral compounds are radicals with 7 π electrons. Oxidation affords the dithiadiazolium cations. Chloride salts of diithiadiazolium cation can be prepared by the reaction of nitriles with thiazyl chloride: 2 RCN + 4 NSCl → 2 [RCN2S2]+Cl− + Cl2 + N2