Health & Environmental Research Online (HERO)


Print Feedback Export to File
7683286 
Journal Article 
A high density and insensitive fused [1,2,3]triazolo-pyrimidine energetic material 
Zhang, G; Xiong, H; Yang, P; Lei, C; Hu, Wei; Cheng, G; Yang, H; , 
2021 
Yes 
Chemical Engineering Journal
ISSN: 1385-8947 
ELSEVIER SCIENCE SA 
LAUSANNE 
404 
126514 
English 
WOS:000601347000003 
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). 
Crystal-structure analysis; Decomposition temperature; High energy insensitivity material; Nitration