Reaction of the bis-trifluoromethyl nitroxide radical with tetrasulphur tetranitride and some of its derivatives

Abstract

Liquid bis-trifluoromethyl nitroxide radical reacts quantitatively at room temperature with tetrasulphur tetranitride to form tetrathiazyl tetra(bis-trifluoromethyl nitroxide), N 4S 4[ON(CF 3) 2] 4 (nc). This material is a white crystalline solid which is unattacked at room temperature by water or hydrogen chloride. The same compound is formed in the reaction of the radical with N 4S 4H 4 or N 3S 3Cl 3 or in the reaction of Hg[ON(CF 3) 2] 2 with N 3S 3Cl 3. Reaction of Hg [ON(CF 3) 2] 2 with thiazyl fluoride, NSF, gives thiazyl bis-trifluoromethyl nitroxide (nc), a moisture-sensitive yellow oil, which polymerizes at room temperature to trithiazyl tri(bis-trifluoromethyl nitroxide), N 3S 3[ON(CF 3) 2] 3 (nc). Preliminary experiments show that the gaseous bis-trifluoromethyl nitroxide radical reacts with trisulphur dinitrogen dioxide, S 3N 2O 2, to form sulphanuric bis-trifluoromethyl nitroxide (nc).