Nitrogen-rich Salts based on 3-Dinitromethyl-[1,2,4]triazine: Synthesis, Characterization, and Performance

摘要

1,1-Diamino-2,2-dinitroethylene (FOX-7), one of the most well-known energetic materials, has attracted broad attention around the world. To extend the chemistry of FOX-7, we present here a series of energetic salts based on 3-dinitromethyl-[1,2,4]triazine, which is prepared from FOX-7. All these salts were fully characterized using H-1 NMR, C-13 NMR, IR, and elemental analysis. In addition, the potassium salt (2), ammonium salt (5), and guanidinium salt (7) were further confirmed by single-crystal X-ray diffraction. Extensive hydrogen bonds were observed in these salts. The salts exhibit moderate densities varying from 1.63 to 1.76 g center dot cm(-3). All the compounds possess good thermal stability with decomposition temperatures from 118 to 267 degrees C. The detonation performance for salts were calculated by using EXPLO 5, their detonation velocities are in the range from 6807 to 8614 m center dot s(-1) and detonation pressures fall between 18.8 to 31.6 GPa. All the salts exhibit very low mechanical sensitivity, which indicates their potential application as insensitive energetic materials.