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合成先进的Pyrazole和N-N-桥接的基于比斯特里亚的二次高能材料

Abhishek Kumar Yadav¹, Navaneet Kumar¹, Vikas D Ghule²

¹Energetic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.

Organic letters

|November 29, 2023

概括

合成了新的富含的化合物,具有出色的热稳定性和高爆炸速度,性能优于RDX和HMX. 这些不敏感的能量材料是当前爆炸物的有希望的替代品.

科学领域:

材料科学材料科学材料科学
有机化学有机化学
能量材料能量材料

背景情况:

像RDX和HMX这样的现有爆炸物在性能和安全方面都有局限性.
持续需要具有改进性质的先进能量材料.

研究的目的:

合成新的富含的化合物,具有增强的能量特性.
评估新合成化合物的热稳定性,引爆性能和灵敏性.
探索现有的二次爆炸物的潜在替代品.

主要方法:

从4,6-二chloro-5-nitropyrimidine中合成目标化合物.
使用NMR,IR,DSC和元素分析进行表征.
通过单晶X射线衍射进行结构确认.
评估热稳定性,爆炸速度和冲击/摩擦灵敏度.

主要成果:

在高产量的化合物2,3,和5-8的成功合成.
化合物5-8具有优异的热稳定性 (高达250°C),超过RDX (210°C).
化合物2,4,6和7的爆炸速度在8992到9069米/秒之间,超过RDX (8878米/秒).
所有测试的化合物对冲击 (10-35 J) 和摩擦 (360 N) 的敏感性都很低.

结论:

与RDX和HMX相比,合成的富含的化合物表现出优越的能量性能和热稳定性.
它们的不敏感性和易于合成使它们成为下一代二次爆炸物的非常有前途的候选者.
这些化合物为当前的基准爆炸物提供了可行的替代品.

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