Very thermostable energetic materials based on a fused-triazole: 3,6-diamino-1<i>H</i>-[1,2,4]triazolo[4,3-<i>b</i>][1,2,4]triazole
作者:Yongxing Tang、Ziwei An、Ajay Kumar Chinnam、Richard J. Staples、Jean'ne M. Shreeve
DOI:10.1039/d0nj05152g
日期:——
6-Diamino-1H-[1,2,4]triazolo[4,3-b][1,2,4]triazole (1) and its energetic salts (2–9) were designed and synthesized based on a fused-triazole backbone with two C-amino groups as substituents. Their physicochemical and energetic properties were measured or calculated. Among them, compound 1 exhibits superior thermostability (Td (onset): 261 °C), surpassing its analogues 3,7-diamino-7H-[1,2,4]triazolo[4
基于3,6-Diamino-1 H- [1,2,4] triazolo [4,3- b ] [1,2,4]三唑(1)及其高能盐(2-9)进行设计和合成具有两个C-氨基作为取代基的稠合三唑骨架。测量或计算了它们的理化性质和能量性质。其中,化合物1表现出优异的热稳定性(T d(起始):261°C),超过其类似物3,7-diamino-7 H- [1,2,4] triazolo [4,3- b ] [1, 2,4]三唑(DATT,219°C)和3,6,7-三氨基-7 H- [1,2,4]三唑[4,3- b] [1,2,4]三唑(TATOT,245°C)。通过确定最低的键离解能(BDE)进一步研究热稳定性的差异,其中观察到分子的稳定性和最低的BDE值之间存在正相关。结果表明,与DATT和TATOT相比,具有最低BDE值的最大值的1具有更好的热稳定性。高能盐(2–9)还表现出显着的热稳定性以及低冲击