Work

What are the prospects for energetic materials bearing the 1,3-dinitro-1,3-diazabutyl group: A breakthrough or an impasse?

Year: 2025

Type: article

Abstract: The synthesis of novel energetic compounds for the development of propellants and powders with significantly improved characteristics is an important and complex task. The combination of little- studied hydrogen-containing explosophoric groups and high nitrogen heterocycles is a powerful strategy for creating the compounds needed to address this challenge. A number of energetic substituted furazans, bearing a rare 1,3-dinitro-1,3-diazabutyl group, were synthesized and their properties were thoroughly studied. The resulting (1,3-dinitro-1,3-diazabutyl)furazans 1b–f have good thermal stability (onset decomposition temperatures 124–160 °C), high experimental enthalpies of formation (947–1528 kJ⋅kg−1) and acceptable densities (1.60–1.70 g⋅cm−3). In terms of detonation performance, all synthesized compounds (detonation velocities D = 8.0–8.3 km⋅s−1, detonation pressures PC–J = 27–30 GPa) are comparable with pentaerythritol tetranitrate (PETN) (D = 8.3 km⋅s−1, PC–J = 31 GPa). For novel compounds "structure-property" relationships have been revealed that will allow predicting the key energetic characteristics of hypothetical compounds containing 1,3-dinitro-1,3-diazabutyl explosophoric group.

Source: FirePhysChem

DOI: 10.1016/j.fpc.2025.09.003