A heat-resistant explosive featuring an N,N′-ethylene bridged 1,2,4-1H-triazole fused ring

Shaoqing Wang, Congcong Li, Shaojia Li, Hongquan Yin, Qing Ma*, Fu Xue Chen*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Six energetic compounds bridged by N,N′-alkyl groups were synthesized in a straightforward manner in 1-3 steps from 3-nitro-1H-1,2,4-triazol-5-amine (ANTA). Among these compounds, 2,7-dinitro-10,11-dihydrobis([1,2,4]triazolo)[5,1-c:1′,5′-g][1,2,4,7]tetrazocine (2) exhibits a decomposition temperature exceeding 300 °C (Td(onset) = 319 °C), with superior density and detonation performance (ρ = 1.83 g cm−3, Dv = 8157 m s−1) to HNS. N,N′-(Methylenebis(3-nitro-1H-1,2,4-triazole-1,5-diyl))dinitramide (5) has the highest density (ρ = 1.91 g cm−3) with the best comprehensive detonation performance (Dv = 9079 m s−1, P = 36.1 GPa), and is comparable to HMX. Insight into the relationship between stability and structure revealed that 1,2,4-triazole-based compounds with an N,N′-ethylene bridge consistently exhibit superior stability compared to those with an N,N′-methylene bridge. This provides a new way to design fused ring explosives with high stability.

源语言英语
页(从-至)7562-7565
页数4
期刊New Journal of Chemistry
48
17
DOI
出版状态已出版 - 15 4月 2024

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