A promising energetic compound with excellent detonation performance and low sensitivity

摘要

Among energetic materials, there is a significant challenge facing researchers: to seek an optimal balance between high performance and safety. By introduction of a novel azo backbone and low-sensitivity C-NO_2 moieties, a promising energetic molecule, 3-(4-nitro-1,2,5-oxadiazole-2-oxide -3-yl)-5-((3-(4-nitroisoxazol-3-yl)-1,2,4-oxadiazol-5-yl)diazenyl)-1,2,4-oxadiazole (6) was prepared and well characterized by IR and multinuclear NMR spectroscopy, elemental analysis, DSC measurement, and single crystal X-ray diffraction. It shows low mechanical sensitivity (IS: 12 J, FS: 180 N), and superior detonation performance (D: 9666 m s , P: 42.8 GPa). Furthermore, the detonation test of 6 was conducted. The result indicates that 6 is powerful than the secondary explosive RDX. The combination of advanced performance and desirable safety make it a potential replacement for the commonly used explosives HMX.