Novel family of nitrogen-rich energetic (1,2,4-triazolyl) furoxan salts with balanced performance
Alexander А. Larin, Алла Н. Пивкина, Ivan V. Ananyev, Dmitry V. Khakimov, Леонид Л. Ферштат
Abstract
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°C), 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.