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首页> 外文期刊>RSC Advances >Nitrogen-rich salts of 1-aminotetrazol-5-one: oxygen-containing insensitive energetic materials with high thermal stability
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Nitrogen-rich salts of 1-aminotetrazol-5-one: oxygen-containing insensitive energetic materials with high thermal stability

机译：1-氨基四唑-5-酮的富氮盐：具有高热稳定性的含氧不敏感高能材料

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摘要

1-Aminotetrazol-5-one (ATO) is a new insensitive nitrogen-rich energetic compound with quite attractive detonation properties (D = 8.88 km s(-1), P = 35.0 GPa), but its formation always requires harsh conditions to facilitate the process. In this contribution we presented an improved synthesis route of ATO in excellent yields and high purity. A large variety of nitrogen-rich salts of ATO were synthesized by means of Bronsted acid-base or metathesis reactions, and confirmed by single-crystal X-ray diffraction for the first time. These compounds were fully characterized by FT-IR and multinuclear NMR spectroscopy, elemental analysis (EA) and differential scanning calorimetry (DSC). All the salts except 7a decompose at temperatures over 220 degrees C; in particular, the aminoguanidinium salt and 3,4-diamino-1,2,4-triazolium salt are fairly stable with a decomposition temperature of 259 degrees C and 261.5 degrees C, respectively. Based on heats of formation calculated with Gaussian 09 and combined with experimentally determined densities, detonation properties of the energetic salts were obtained. They exhibit good thermal stability, excellent impact sensitivities (>40 J), reasonable detonation pressures (23.6-31.0 GPa) and velocities (7.53-8.72 km s(-1)) and might be potentially insensitive energetic materials.
机译：1-Aminotetrazol-5-one（ATO）是一种新型的不敏感的富氮高能化合物，具有引人注目的引爆特性（D = 8.88 km s（-1），P = 35.0 GPa），但其形成始终需要苛刻的条件才能促进过程。在这项贡献中，我们提出了一种改进的ATO合成路线，其产率高，纯度高。通过布朗斯台德酸碱或复分解反应合成了多种ATO富氮盐，并首次通过单晶X射线衍射进行了证实。这些化合物已通过FT-IR和多核NMR光谱，元素分析（EA）和差示扫描量热法（DSC）进行了全面表征。除7a外，所有盐都在220摄氏度以上的温度下分解;特别地，氨基胍盐和3，4-二氨基-1，2，4-三唑鎓盐在分解温度分别为259℃和261.5℃时相当稳定。基于用高斯09计算的地层热并结合实验确定的密度，获得了高能盐的爆炸特性。它们表现出良好的热稳定性，出色的冲击敏感性（> 40 J），合理的爆炸压力（23.6-31.0 GPa）和速度（7.53-8.72 km s（-1）），并且可能是潜在不敏感的高能材料。

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