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首页> 外文期刊>Chemistry: A European journal >Nitrogen-rich 5,5′-bistetrazolates and their potential use in propellant systems: A comprehensive study
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Nitrogen-rich 5,5′-bistetrazolates and their potential use in propellant systems: A comprehensive study

机译：富含氮的5,5'-双四唑酸盐及其在推进剂系统中的潜在用途：综合研究

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摘要

A large variety of twice-deprotonated nitrogen-rich 5,5′- bistetrazolates, that is, the ammonium (1), hydrazinium (2), hydroxylammonium (3), guanidinium (4), aminoguanidinium (5), diaminoguanidinium (6), triaminoguanidinium (7), and diaminouronium (8) salts, have been synthesized. Energetic compounds 1-8 were fully characterized by single-crystal X-ray diffraction (except 8), NMR spectroscopy, IR and Raman spectroscopy, and differential scanning calorimetry (DSC) measurements. With respect to their potential use in propellant applications, the sensitivity towards impact, friction, and electrical discharge were determined. Several propulsion and detonation parameters (e.g., heat of explosion, detonation velocity) were computed by using the EXPLO5 computer code based on calculated (CBS-4M) heats of formation and X-ray densities. Additionally, the performance of 1-8 in various formulations was investigated by calculating the specific energy and specific impulse of the compounds under isochoric conditions. The thrust generation: The synthesis and complete characterization of a series of nitrogen-rich salts of 5,5′-bistetrazole gave promising materials with potential applications in novel propellant systems (see figure). In addition to their good thermal and chemical stability, the high nitrogen content leads to good N _2/CO ratios when combusted, which is desirable to avoid environmental and corrosion problems.
机译：各种各样的两次去质子化的富氮5,5'-双四唑酸盐，即铵（1），肼（2），羟基铵（3），胍（4），氨基胍（5），二氨基胍（6）合成了三氨基胍盐（7）和二氨基尿鎓（8）盐。通过单晶X射线衍射（8除外），NMR光谱，IR和拉曼光谱以及差示扫描量热法（DSC）测量来充分表征高能化合物1-8。关于其在推进剂应用中的潜在用途，确定了对冲击，摩擦和放电的敏感性。通过使用EXPLO5计算机代码，基于计算的（CBS-4M）地层热和X射线密度，计算了几个推进和爆炸参数（例如爆炸热，爆炸速度）。另外，通过计算化合物在等压条件下的比能和比冲量，研究了1-8在各种配方中的性能。推力产生：一系列5,5'-双四唑的富氮盐的合成和完整表征，为有前景的材料提供了在新型推进剂系统中的潜在应用（见图）。除了其良好的热和化学稳定性外，高氮含量在燃烧时还导致良好的N _2 / CO比，这是避免环境和腐蚀问题所希望的。

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