首页> 中文期刊> 《含能材料》 >5,10-双(偕二硝基甲基)-呋咱并3,4-e双(1,2,4三唑并)4,3-a:3',4'-c吡嗪及其含能离子化合物的合成与性能

5,10-双(偕二硝基甲基)-呋咱并3,4-e双(1,2,4三唑并)4,3-a:3',4'-c吡嗪及其含能离子化合物的合成与性能

         

摘要

以二氨基呋咱(DAF)为原料合成了含能化合物5,10-双(偕二硝基甲基)-呋咱并[3,4-e]双([1,2,4]三唑并)[4,3-a:3',4'-c]吡嗪(BOBTP,七步合成总收率10%),通过中和反应与一系列富氮阳离子搭配制备出了相应的含能离子化合物;采用X-射线单晶衍射(XRD)、傅里叶变换红外光谱(FT-IR)、核磁共振(1H NMR、13C NMR)、元素分析等手段对其结构进行了表征;利用热重法(TG)-差示扫描量热法(DSC)测定了它的热分解温度;运用Explore5 v6.02软件计算了其爆轰性能.结果表明,BOBTP的二钾盐(BOBTPK)的晶体属于单斜晶系,C2/c空间群,晶胞参数为a=1.9913(3)(A),b=0.93491(12)(A),c=1.6807(2)(A),β=90.160(3)°,V=3129.0(7)(A)3,Z=8,Dc=2.103 g· cm-3,M=1.752 mm-1,F(000)=1976.对所得的基于BOBTP的含能离子化合物,25℃时的实测密度范围为1.62~ 1.75 g·cm-3;热分解反应的onset温度范围为186~232℃;计算爆速大于7500 m·s-1,爆压大于20 GPa;实测撞击及摩擦感度较低,其中BOBTP的二羟胺盐的撞击感度为18J,摩擦感度为240 N.%An energetic compound 5,10-bis (dinitromethyl)-furazan [3,4-e] bis ([1,2,4] triazolo) [4,3-a:3',4'-c] pyrazine (BOBTP,total yield of seven-step synthesis as 10%) was synthesized using diaminofurazan (DAF) as raw material.Its corresponding energetic ion compounds were synthesized via.neutralization reaction collocated with a series of nitrogen-rich cations.Its structure was characterized by single-crystal X-ray diffraction (XRD),Fourier transform infrared spectroscopy (FT-IR),nuclear magnetic resonance (1H NMR and 13C NMR) and elemental analyses.Its thermal decomposition temperature was measured by thermogravimetry(TG) and differential scanning calorimetry(DSC).Its detonation performance were calculated with Explore 5 v6.02 software.Results show that the crystal of dipotassium salt of BOBTP belongs to monoclinic system and C2/c space group with cell parameters of a=1.9913(3) nm,b=0.93491 (12) nm,c=1.6807(2) nm,β=90.160(3)°,V=3129.0(7) nm3,Z=8,Dc=2.103 g· cm-3,M=1.752 mm-1,F(000) =1976.For energetic ion compounds obtained based on BOBTP,the measured densities at 25 ℃ are in the range of 1.62-1.75 g · cm-3 and the onset temperatures of thermal decomposition reaction are in the range of 186-232 ℃.The calculated detonation velocities and pressures are higher than 7500 m · s-1 and 20 GPa,respectively.The measured impact and friction sensitivities are relatively low.In which,the impact sensitivity of dihydroxylamine salt of BOBTP is 18 J and the friction sensitivity is 240 N.

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