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首页> 外文期刊>Chemistry: A European journal >Furazans with Azo Linkages: Stable CHNO Energetic Materials with High Densities, Highly Energetic Performance, and Low Impact and Friction Sensitivities
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Furazans with Azo Linkages: Stable CHNO Energetic Materials with High Densities, Highly Energetic Performance, and Low Impact and Friction Sensitivities

机译：具有偶氮键的呋喃酮：具有高密度，高能性能，低冲击和摩擦敏感性的稳定的CHNO含能材料

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摘要

Various highly energetic azofurazan derivatives were synthesized by simple and efficient chemical routes. These nitrogen-rich materials were fully characterized by FTIR spectroscopy, elemental analysis, multinuclear NMR spectroscopy, and high-resolution mass spectrometry. Four of them were further confirmed structurally by single-crystal X-ray diffraction. These compounds exhibit high densities, ranging from 1.62gcm(-3) up to a remarkably high 2.12gcm(-3) for nitramine-substituted azofurazan DDAzF (2), which is the highest yet reported for an azofurazan-based CHNO energetic compound and is a consequence of the formation of strong intermolecular hydrogen-bonding networks. From the heats of formation, calculated with Gaussian09, and the experimentally determined densities, the energetic performances (detonation pressure and velocities) of the materials were ascertained with EXPLO5 v6.02. The results suggest that azofurazan derivatives exhibit excellent detonation properties (detonation pressures of 21.8-46.1GPa and detonation velocities of 6602-10114ms(-1)) and relatively low impact and friction sensitivities (6.0-80J and 80-360N, respectively). In particular, they have low electrostatic spark sensitivities (0.13-1.05J). These properties, together with their high nitrogen contents, make them potential candidates as mechanically insensitive energetic materials with high-explosive performance.
机译：通过简单有效的化学路线合成了各种高能的氮杂呋喃衍生物。这些富氮材料已通过FTIR光谱，元素分析，多核NMR光谱和高分辨率质谱进行了充分表征。通过单晶X射线衍射在结构上进一步证实了其中四个。这些化合物显示出高密度，从硝胺取代的氮杂呋喃DDAzF（2）的1.62gcm（-3）到非常高的2.12gcm（-3），这是基于氮杂呋喃的CHNO高能化合物和环糊精报道的最高密度。是形成强分子间氢键网络的结果。从使用Gaussian09计算的地层热以及实验确定的密度，使用EXPLO5 v6.02确定材料的能量性能（爆震压力和速度）。结果表明，氮杂呋喃衍生物具有出色的爆炸特性（爆炸压力为21.8-46.1GPa，爆炸速度为6602-10114ms（-1）），并且具有较低的冲击和摩擦敏感性（分别为6.0-80J和80-360N）。特别是，它们具有较低的静电火花敏感度（0.13-1.05J）。这些特性以及其高氮含量使其成为具有高爆炸性能的对机械不敏感的高能材料的潜在候选者。

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