Fused rings with N-oxide and –NH2: good combination for high density and low sensitivity energetic materials

Abstract

Oxidation reactions of 3,6-diamino-1,2,4-triazolo[4,3-b][1,2,4,5]tetrazine give four N-oxide compounds. Because of the presence of an amino group and the N-oxide moiety, these compounds are extensively hydrogen bonded. Resulting from π–π stacking interactions between the fused rings, compounds 1–3 are impact and friction insensitive, are thermally stable and have good density.