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A high density and insensitive fused [1,2,3]triazolo–pyrimidine energetic material
Chemical Engineering Journal ( IF 13.3 ) Pub Date : 2020-08-02 , DOI: 10.1016/j.cej.2020.126514
Guojie Zhang , Hualin Xiong , Pengju Yang , Caijin Lei , Wei Hu , Guangbin Cheng , Hongwei Yang

A novel fused triazolo-pyrimidine energetic compound was synthesized by the two-step diazotization-nitrification method or one-step direct nitration reaction. The physical properties and detonation properties of intermediate 3H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7-diamine (2) and N-(7-oxo-6,7-dihydro-2H-[1,2,3]triazolo[4,5-d]pyrimidin-5-yl)nitramide (3) were further explored. Compound 2 has a higher decomposition temperature (368 °C) than that of 2,4,6-trinitrotoluene (TNT, 295 °C). X-ray crystal-structure analysis shows that the density of compound 3 was 1.97 g cm−3 at 100 K. Not only the detonation performance of compound 3 (8845 m s−1, 32.54 GPa) was predicted to approach RDX (8795 m s−1, 34.9 GPa) but displays significantly good safety properties (36 J), which means that compound 3 may serve as a potential high energy insensitivity material (HEIM).



中文翻译:

高密度和不敏感的熔融[1,2,3]三唑并嘧啶高能材料

通过两步重氮化-硝化法或一步直接硝化反应合成了新型的稠合三唑并嘧啶高能化合物。中间体3H- [1,2,3]三唑[4,5-d]嘧啶-5,7-二胺(2)和N-(7-氧代-6,7-dihydro-2H的物理性质和爆轰性质进一步探索了-[1,2,3]三唑并[4,5-d]嘧啶-5-基)硝酸酰胺(3)。化合物2的分解温度(368°C)比2,4,6-三硝基甲苯(TNT,295°C)高。X射线晶体结构分析表明,化合物3在100 K时的密度为1.97 g cm -3。不仅化合物3的爆炸性能(8845 m s -1,32.54 GPa)的被预测为接近RDX(8795米小号-1,34.9 GPA),但显示良好的显著安全性能(36 J)的,这意味着化合物3可以用作潜在的高能量不敏感材料(HEIM)。

更新日期:2020-08-06
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