Combining the advantages of 1,3,4-oxadiazole and tetrazole enables achieving high-energy insensitive materials
作者:Chao Zhang、Mei-Qi Xu、Wen-Shuai Dong、Zu-Jia Lu、Han Zhang、Xiao-Wei Wu、Zhi-Min Li、Jian-Guo Zhang
DOI:10.1039/d3dt02079g
日期:——
Combining the advantages of energetic heterocycles to achieve high-energy insensitive explosives is a significant challenge. Herein, based on high-energy tetrazole rings and highly stable 1,3,4-oxadiazole rings, a series of novel nitrogen rich energetic compounds 5–9 were successfully constructed. The related compounds were fully characterized by EA, FT-IR, NMR, DSC, and MS, and compounds 6–9 were further
结合高能杂环的优点来实现高能不敏感炸药是一个重大挑战。在此,基于高能四唑环和高度稳定的1,3,4-恶二唑环,成功构建了一系列新型富氮含能化合物5-9 。相关化合物通过EA、FT-IR、NMR、DSC和MS进行了充分表征,并且化合物6-9通过X射线单晶衍射进一步得到证实。其中,高能离子盐6-8表现出高热稳定性(T dec > 250 °C)和低机械敏感性(IS > 40 J,FS > 360 N),以及良好的能量特性(7552-8050 ms - 1 , 19.4–23.3 GPa)。特别是,偶氮化合物9表现出良好的综合性能(T dec = 226.2 °C,D = 8502 ms -1,P = 28.9 GPa,IS = 32 J,FS = 320 N)。这些结果表明,整合四唑和1,3,4-恶二唑并采用偶氮结构作为桥联单元的策略是构建高能不敏感材料的有效方法。