Larin Alexander A, Pivkina Alla N, Ananyev Ivan V, Khakimov Dmitry V, Fershtat Leonid L
N. D. Zelinsky Institute of Chemistry, Russian Academy of Sciences, Moscow, Russia.
Department of Chemistry, National Research University Higher School of Economics, Moscow, Russia.
Front Chem. 2022 Sep 12;10:1012605. doi: 10.3389/fchem.2022.1012605. eCollection 2022.
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 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) and high positive enthalpies of formation (344-1,095 kJ mol). As a result, synthesized energetic salts have good detonation performance ( = 7.0-8.4 km s; = 22-32 GPa), while their sensitivities to impact and friction are quite low.
由几个杂环亚基组合而成的富氮含能材料在材料科学领域保持着领先地位。在这方面,非常需要制备具有平衡的物理化学性质的新型高能材料。在此,我们报道了一系列含有(1,2,4-三唑基)呋咱核心的含能盐的合成及其能量性质的全面评估。所有目标含能材料都通过红外光谱、多核核磁共振光谱和元素分析进行了充分表征,而化合物 还通过单晶X射线衍射研究进行了进一步表征。制备的富氮盐具有高热稳定性(高达232°C)、良好的实验密度(高达1.80 g/cm³)和高正生成焓(344 - 1095 kJ/mol)。因此,合成的含能盐具有良好的爆轰性能(爆速 = 7.0 - 8.4 km/s;爆压 = 22 - 32 GPa),而它们对撞击和摩擦的敏感度相当低。