爆炸物
小学(天文学)
烟火
化学
亲核取代
钾
组合化学
起爆
盐(化学)
亲核细胞
原材料
有机化学
催化作用
物理
天文
作者
Wei Hu,Jie Tang,Xue‐Hai Ju,Zhenxin Yi,Hongwei Yang,Chuan Xiao,Guangbin Cheng
出处
期刊:ACS central science
[American Chemical Society]
日期:2023-03-16
卷期号:9 (4): 742-747
被引量:7
标识
DOI:10.1021/acscentsci.3c00219
摘要
The first example of [5,6,5]-tricyclic bistetrazole-fused energetic materials has been obtained through a one-step reaction from commercial and inexpensive 4,6-dichloro-5-nitropyrimidine. This one-step reaction including nucleophilic substitution, nucleophilic addition, cyclization, and electron transfer is rarely reported, and the reaction mechanism and scope is well investigated. Among target compounds, organic salts exhibit higher detonation velocities (D: 8898-9077 m s-1) and lower sensitivities (IS: 16-20 J) than traditional high energy explosive RDX (D = 8795 m s-1; IS = 7.5 J). In addition, the potassium salt of 5-azido-10-nitro-bis(tetrazolo)[1,5-c:5',1'-f]pyrimidin (DTAT-K) possesses excellent priming ability, comparable to traditional primary explosive Pb(N3)2, and ultralow minimum primary charge (MPC = 10 mg), which is the lowest MPC among the reported potassium-based primary explosives. The simple synthesis route, free of heavy metal and expensive raw materials, makes it promising to quickly realize this material in large-scale industrial production as a green primary explosive. This work accelerates the upgrade of green primary explosives and enriches future prospects for the design of energetic materials.
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