新型内盐N-(2,2-二硝基乙基)氨基胍的合成与性能

以2,2二硝基丙二醇为原料,经降解反应和取代两步反应合成了内盐型化合物N(2,2二硝基乙基)氨基胍,两步总反应产率为65%,采用X射线单晶衍射分析、傅里叶变换红外光谱(FT IR)、核磁共振谱(1HNMR、13CNMR)和元素分析等方法进行了结构表征;通过差热示差量热仪热失重(DSC TG)联用技术测定了其分解温度,利用等键方程和K J方程预测了其能量参数。结果表明,内盐N(2,2二硝基乙基)氨基胍的晶体为单斜晶系,空间群为P21/n,晶胞参数为a=8.8613(10),b=6.4568(6),c=13.4134(16),α=90°,β=95.093(4)°,γ=90°,V=764.43(14)nm^3,Z=4,Dc=1.670 g cm-3,F(000)=400。其热分解温度为183.8℃,理论爆速为8333m s-1,理论爆压为29.4GPa;实测的撞击感度和摩擦感度较低,撞击感度为20J,摩擦感度为120N。

Synthesis and Properties of New Zwitterionic N-(2,2-Dinitroethyl)-aminoguanidine

A new zwitterionic energetic compound N(2,2 dinitroethyl)aminoguanidine can be obtained through two step reac tions(degradation reaction and substitution reaction)using 2,2 dinitro 1,3 propanediol as raw material in a total yield of 65%.Its structure was characterized by single crystal X ray diffraction,FT IR,NMR(1H NMR and 13C NMR)and elemental analyses.Its thermal decomposition temperature was confirmed by differential scanning calorimetry and thermogravimetry(DSC TG),and energetic parameters were calculated using the method of isodesmic reactions and K J formula.The results show that the crystal of zwitterionic N(2,2 dinitroethyl)aminoguanidine belongs to monoclinic system and P21/n space group with cell parameters of a=8.8613(10),b=6.4568(6),c=13.4134(16),α=90°,β=95.093(4)°,γ=90°,V=764.43(14)nm^3,Z=4,Dc=1.670 g cm^-3,F(000)=400.The decomposition temperature locates at 183.8℃,and calculated detonation velocities and pres sures are 8333 m s-1,29.4 GPa,respectively.The measured impact and friction sensitivities are low(IS=20 J,FS=120 N)。