Energetic salts based on 4,4′-oxybis[3,3′-(1H-5-tetrazol)]furazan were readily synthesized and fully characterized by NMR (1H, 13C), IR spectroscopy, elemental analysis, and differential scanning calorimetry (DSC). Bis(guanidinium) (6), bis(aminoguanidinium) (7), bis(diaminoguanidinium) (8) salts and carbonic dihydrazidinium(HBTFOF)2 (13) were further confirmed by single-crystal X-ray diffraction. All the salts exhibit excellent thermal stabilities with decomposition temperatures over the range 212–289 °C. The densities of the energetic salts ranged between 1.64 and 1.86 g cm−3. The detonation pressures and velocities were calculated to be between 19.7 and 30.8 GPa and 7266–8624 m s−1, respectively. Impact sensitivities were found to be in the range 5–36 J. The relationship between salt structure and thermal stability was studied by NBO analysis for compounds 6, 7, and 8.
基于 4,4′-
氧双[3,3′-(1H-5-
四唑)]
呋喃的高能盐很容易合成,并通过核磁共振(1H、13C)、红外光谱、元素分析和差示扫描量热法(
DSC)进行了全面表征。通过单晶 X 射线衍射进一步证实了双
胍盐 (6)、双
胍盐 (7)、双
胍盐 (8) 和
碳酸二
肼鎓盐 (H
BTFOF)2 (13)。所有盐类都具有极佳的热稳定性,分解温度在 212-289 ℃ 之间。高能盐的密度介于 1.64 和 1.86 g cm-3 之间。计算得出的爆炸压力和速度分别为 19.7 至 30.8 GPa 和 7266-8624 m s-1。通过对化合物 6、7 和 8 进行 NBO 分析,研究了盐结构与热稳定性之间的关系。