A high density and insensitive fused [1,2,3]triazolo-pyrimidine energetic material

被引：48
|
作者：
Zhang, Guojie [1 ]
Xiong, Hualin [1 ]
Yang, Pengju [1 ]
Lei, Caijin [1 ]
Hu, Wei [1 ]
Cheng, Guangbin [1 ]
Yang, Hongwei [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Xiaolingwei 200, Nanjing 210094, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2021年 / 404卷
基金：
中国国家自然科学基金;
关键词：
Nitration; Decomposition temperature; Crystal-structure analysis; High energy insensitivity material; LOW-SENSITIVITY; HETEROCYCLE; MULTIPURPOSE; CRYSTALS; 2-OXIDE; RING;
D O I：
10.1016/j.cej.2020.126514
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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[4,5d]pyrimidin-5-yl)nitramide (3) were further explored. Compound 2 has a higher decomposition temperature (368 degrees C) than that of 2,4,6-trinitrotoluene (TNT, 295 degrees 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).
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页数：9
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