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Tetrazolo[1,5-b]pyridazine as a versatile scaffold for construction of multipurpose energetic materials
Energetic Materials Frontiers ( IF 3.3 ) Pub Date : 2021-11-06 , DOI: 10.1016/j.enmf.2021.09.003
Si-tong Chen 1 , Xiu-juan Qi 2 , Tian-lin Liu 1 , Qing-hua Zhang 1
Affiliation  

In this work, a fused-ring tetrazolo[1,5-b]pyridazine framework with catenated nitrogen chain was applied to develop new energetic materials with task-specific applications for different purposes. Their syntheses, characterizations and properties were extensively studied. Among them,6-methylnitramimo-7-nitro-8-aminotetrazolo[1,5-b]pyridazine (4) is a potential booster explosive with good detonation velocities (Dv: 8496 ​m ​s−1), detonation pressure (p: 28.7 ​GPa), impact sensitivity (IS: 3 ​J), friction sensitivity (FS: 112 ​N) and better decomposition temperature (Td: 200.7 ​°C) than PETN as well as suitable predicted shock sensitivity (p90% TMD: 1.839 ​GPa). 6-Nitramimo-7-amino-8-nitrotetrazolo[1,5-b]pyridazine (12) is a high-energy explosive (Dv: 8926 ​m ​s−1, p: 33.7 ​GPa), while bis((7-nitro-8-aminotetrazolo[1,5-b]pyridazin-6-yl)amino)ethane (9) is a heat-resistant explosive (Td: 303.1 ​°C) with high detonation performances (Dv: 8809 ​m ​s−1, p: 29.3 ​GPa) and low sensitivities (IS: 19 ​J, FS: 288 ​N). The analysis of crystal structure, Hirshfeld surface, fingerprint plot, bond dissociation energies (BDEs) and electrostatic potentials (ESP) was used to assess the energy density and sensitivity properties.



中文翻译:

四唑并[1,5-b]哒嗪作为用于构建多用途含能材料的多功能支架

在这项工作中,具有链状氮链的稠环四唑并[1,5- b ]哒嗪骨架被应用于开发具有不同用途的特定任务应用的新型含能材料。对它们的合成、表征和性质进行了广泛研究。其中,6-甲基硝基氨基-7-硝基-8-氨基四唑并[1,5- b ]哒嗪(4)是一种潜在的爆炸助推剂,具有良好的爆速(D v : 8496 ​m​s -1),爆压(p : 28.7 ​GPa)、冲击敏感性 ( IS : 3 ​J)、摩擦敏感性 ( FS: 112 ​N) 和更好的分解温度 ( T d: 200.7 °C) 比 PETN 以及合适的预测冲击敏感性 ( p 90% TMD : 1.839 GPa)。6-Nitramimo-7-amino-8-nitrotetrazolo[1,5- b ]哒嗪 ( 12 ) 是一种高能炸药 ( D v : 8926 ​m ​s -1 , p : 33.7 ​GPa),而 bis( (7-nitro-8-aminotetrazolo[1,5- b ]pyridazin-6-yl)amino)ethane ( 9)是一种耐热炸药 ( T d : 303.1 ​°C) 具有高爆轰性能 ( D v : 8809 ​m​s -1 , p : 29.3 ​GPa) 和低灵敏度 ( IS: 19 ​J, FS:288 牛顿)。晶体结构、Hirshfeld 表面、指纹图、键解离能 (BDE) 和静电势 (ESP) 的分析用于评估能量密度和灵敏度特性。

更新日期:2021-11-06
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