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

摘要

A novel insensitive high explosive 3,4-bis(aminofurazano)furoxan(BAFF)was prepared using 3-amino-4-acylchloroximi-nofurazan(ACOF)as a precursor.The molecular and crystal structures of BAFF were characterized by IR,MS,~1H 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 rho_c=1.745 g cm~(-3),and that recrystallized from ethanol is triclinic,space group P 1,and rho_c=1.737 g cm~(-3).BAFF has multiple crystal forms.The calculated detonation velocity by BKW code is 8100 m s~(-1)(rho=1.795 g cm~(-3),theoretical density calculated by quantum chemistry)and the experimental value is 7177 m s~(-1)(rho=1.530 g cm~(-3),charge density).The tested values of impact,friction,and electrostatic spark sensitivity show that BAFF is insensitive.