A Novel Insensitive High Explosive 3,4‐Bis (Aminofurazano) Furoxan

A novel insensitive high explosive 3,4‐bis (aminofurazano) furoxan (BAFF) was prepared using 3‐amino‐4‐acylchloroximinofurazan (ACOF) as a precursor. The molecular and crystal structures of BAFF were characterized by IR, MS, 1 H NMR, 13 C NMR, elemental analysis, and single crystal X‐ray diffraction. The single crystal structure of BAFF recrystallized from water is monoclinic, space group P 21/c, and ρ c =1.745 g cm −3 , and that recrystallized from ethanol is triclinic, space group P 1, and ρ c =1.737 g cm −3 . BAFF has multiple crystal forms. The calculated detonation velocity by BKW code is 8100 m s −1 ( ρ =1.795 g cm −3 , theoretical density calculated by quantum chemistry) and the experimental value is 7177 m s −1 ( ρ =1.530 g cm −3 , charge density). The tested values of impact, friction, and electrostatic spark sensitivity show that BAFF is insensitive.