Heat‐Resistant Energetic Materials Deriving from Benzopyridotetraazapentalene: Halogen Bonding Effects on the Outcome of Crystal Structure, Thermal Stability and Sensitivity,Propellants, Explosives, Pyrotechnics

当前位置： X-MOL 学术 › Propellants Explos. Pyrotech. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Heat‐Resistant Energetic Materials Deriving from Benzopyridotetraazapentalene: Halogen Bonding Effects on the Outcome of Crystal Structure, Thermal Stability and Sensitivity
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2021-02-10 , DOI: 10.1002/prep.202000306
Zhenqi Zhang ₁ , Wenjing Geng _{1,

2} , Wei Yang ₁ , Qing Ma ₁ , Wei Li ₂ , Guijuan Fan ₁ , Ya Chen ₁

Affiliation

Heat‐resistant energetic material (HREM) has shown its broad applications in petroleum and natural gas exploration, aerospace vehicle as well as solid rocket formulations. Benzopyridotetraazapentalene (BPTAP) (d: 1.84 g cm⁻³, D: 7670 m s⁻¹, IS: 9 J, T_d: 366 °C) is a heat‐resistant energetic material, which is more dense and energetic than those of commercial HREM hexanitrosilbene (HNS) (d: 1.74 g cm⁻³, D: 7612 m s⁻¹, IS: 5 J, T_d: 318 °C). However, low solubility in most of commonly‐used solvents has restricted its applications in detonators as nano‐energetic materials. Meanwhile, recognition on this fused organic backbone is still limited. Herein, we report a chlorine‐inclusion strategy and facile approaches to yield three new derivatives of BPTAP. It is notable that compound 6‐a exhibits its high density (1.92 g cm⁻³), superior thermal stability (T_d: 334 °C), high detonation performance (D: 8084 m s⁻¹), comparable sensitivity (IS: 3 J) to that of HNS, surpassing those of commercially‐used highly‐sensitive primary energetic material lead azide (LA). It is interesting that the chlorine‐inclusion in different position of fused benzopyridotetraazapentalene framework has greatly affected their physical properties such as crystal structure, thermal stability and sensitivity. This investigation offers a unique perspective for deeply exploring the relationship between structure and performance of energetic materials.

中文翻译：

苯并吡喃并四氮杂戊烯衍生的耐热含能材料：卤素键对晶体结构，热稳定性和灵敏度的影响

耐热高能材料（HREM）已在石油和天然气勘探，航空航天以及固体火箭配方中显示出广泛的应用。苯并吡咯四氮杂戊烯（BPTAP）（d：1.84 g cm ^-3，D：7670 m s ^-1，IS：9 J，T _d：366°C）是一种耐热的高能材料，比市售的高能材料更致密，高能HREM六硝基硅（HNS）（d：1.74 g cm ^-3，D：7612 m s ^-1，IS：5 J，T _d：318℃）。但是，在大多数常用溶剂中的低溶解度限制了其在雷管中作为纳米高能材料的应用。同时，对这种融合的有机主链的认识仍然有限。在本文中，我们报告了一种含氯策略和简便的方法，可生产出BPTAP的三种新衍生物。值得注意的是，化合物6-a表现出高密度（1.92 g cm ^-3），优异的热稳定性（T _d：334°C），高爆轰性能（D：8084 m s ^-1），相当的灵敏度（IS：3 J）超过HNS，超过了商业上使用的高度敏感的主要高能材料叠氮化铅（LA）。有趣的是，稠合苯并吡啶并四氮杂戊烯骨架中不同位置的氯夹杂物极大地影响了它们的物理性能，例如晶体结构，热稳定性和敏感性。这项研究为深入探索含能材料的结构与性能之间的关系提供了独特的视角。

更新日期：2021-03-31

点击分享查看原文

点击收藏

阅读更多本刊最新论文