Novel family of nitrogen-rich energetic (1,2,4-triazolyl) furoxan salts with balanced performance

Nitrogen-rich energetic materials comprised of a combination of several heterocyclic subunits retain their leading position in the field of materials science. In this regard, a preparation of novel high-energy materials with balanced set of physicochemical properties is highly desired. Herein, we report the synthesis of a new series of energetic salts incorporating a (1,2,4-triazolyl) furoxan core and complete evaluation of their energetic properties. All target energetic materials were well characterized with IR and multinuclear NMR spectroscopy and elemental analysis, while compound 6 was further characterized by single-crystal X-ray diffraction study. Prepared nitrogen-rich salts have high thermal stability (up to 232?), good experimental densities (up to 1.80 g cm(-3)) and high positive enthalpies of formation (344-1,095 kJ mol(-1)). As a result, synthesized energetic salts have good detonation performance (D = 7.0-8.4 km s(-1); p = 22-32 GPa), while their sensitivities to impact and friction are quite low.

Automated summary

In this study, a new series of energetic salts incorporating a (1,2,4-triazolyl) furoxan core were synthesized and their physicochemical properties were extensively evaluated. These nitrogen-rich salts exhibited high thermal stability, good density, and high positive enthalpies of formation, resulting in excellent detonation performance and low sensitivities to impact and friction.