Fused heterocycle-based energetic salts: alliance of pyrazole and 1,2,3-triazole†
Abstract
Energetic salts based on the 6-nitropyrazolo[3,4-d][1,2,3]triazol-3(4H)-olate anion were synthesized via a cyclization reaction of N-methyl or N,N′-ethylene substituted 4-chloro-3,5-dinitro pyrazole and hydrazine hydrate. All energetic salts were well characterized by differential scanning calorimetry (DSC), elemental analyses, and IR and multinuclear NMR spectroscopy. Energetic properties, including density, detonation velocity and detonation pressure, were evaluated for these nitrogen-rich fused heterocycles as a family of new energetic materials.