In this study, the insensitive material 3,7-diamino-6-methyl-7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole (3), and a series of its energetic salts, were synthesized. 3-nitroimino-6-methyl-7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole (4) was obtained by the direct nitration of the hydrochloride of compound 3. All the compounds were exhaustively characterized by NMR spectroscopy, IR spectroscopy, differential scanning calorimetry (DSC), and elemental analyses. The structures of 4·H₂O, 5, and 8 were further verified by single-crystal X-ray diffraction. Compounds 3–10 exhibited acceptable thermal stability, with decomposition temperatures in the range of 179–289 °C, except for 4 (119 °C), 9 (133 °C), and 10 (151 °C). All the compounds synthesized herein were less sensitive than RDX. The hydrazine salt 9 possessed the highest detonation velocity (8626 m·s everywhere in the article⁻¹), and the other compounds delivered superior detonation performances (D = 7784–8575 m s⁻¹, p = 20.7–28.7 GPa) to that of TNT (D = 6881 m s⁻¹, p = 19.5 GPa). Based on experimental results and theoretical analysis, this study will provide an effective approach for designing insensitive energetic materials.

在这项研究中，不敏感物质3,7-二氨基-6-甲基-7H- [1,2,4]三唑[4,3-b] [1,2,4]三唑（3），以及一系列合成了它的高能盐。通过将化合物3的盐酸盐直接硝化获得3-硝基亚氨基-6-甲基-7H- [1,2,4]三唑并[4,3-b] [1,2,4]三唑（4）。所有化合物均通过NMR光谱，IR光谱，差示扫描量热法（DSC）和元素分析进行​​了详尽的表征。通过单晶X射线衍射进一步证实了4 ·H ₂ O，5和8的结构。化合物3 – 10表现出可接受的热稳定性，分解温度范围为179-289°C （4（119°C），9（133°C）和10（151°C）。本文合成的所有化合物均不如RDX敏感。肼盐9的爆轰速度最高（在文章^-1中各处为8626 m·s ），其他化合物的爆轰性能（D  = 7784–8575 m s ^-1，p =  20.7–28.7 GPa）比其他化合物高。 TNT（D  = 6881 m s ^-1，p = 19.5 GPa）。基于实验结果和理论分析，本研究将为设计不敏感的高能材料提供有效的方法。