AUTHOR=Larin Alexander A. , Pivkina Alla N. , Ananyev Ivan V. , Khakimov Dmitry V. , Fershtat Leonid L. 

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

JOURNAL=Frontiers in Chemistry

VOLUME=10

YEAR=2022

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2022.1012605

DOI=10.3389/fchem.2022.1012605

ISSN=2296-2646

ABSTRACT=<p>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 <bold>6</bold> 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<sup>−3</sup>) and high positive enthalpies of formation (344–1,095 kJ mol<sup>−1</sup>). As a result, synthesized energetic salts have good detonation performance (<italic>D</italic> = 7.0–8.4 km s<sup>−1</sup>; <italic>p</italic> = 22–32 GPa), while their sensitivities to impact and friction are quite low.</p>