Abstract
4-Nitramino-3,5-dinitropyrazole was prepared and stabilized through the formation of its ammonium salt. With selected cations, 14 nitrogen-rich energetic salts were synthesized in high yield by metathesis reactions. These salts were fully characterized by (1)H, (13)C NMR, and IR spectroscopy and elemental analysis. Additionally, the structures of the ammonium, 3,4,5-triaminotriazolium, and biguanidinium salts were confirmed by single-crystal X-ray diffraction. Based on experimental and calculated values, the 4-nitramino-3,5-dinitropyrazolate salts show properties, such as decomposition temperatures (115-229 °C), detonation pressures (23.27-37.42 GPa) and velocities (7713-9013 ms(-1)), and impact sensitivities (5-40 J) that place them with energetics such as RDX and TATB.
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