摘要
以3,4‑二氨基呋咱为起始原料,通过硝化、环化、成盐反应合成了4H‑[1,2,3]氧化三唑并[4,5‑c]呋咱(TODO)的羟胺盐及铵盐。采用蒸发溶剂法制备出TODO羟胺盐(HATODO)与TODO铵盐(ATODO)共晶化合物,通过单晶X射线衍射、傅里叶变换红外光谱和核磁分析对该化合物的结构进行了表征。采用热重‑差示扫描量热仪研究了其热稳定性,依据GJB772A-97方法测试了感度。采用Explo5V6.0对其爆轰性能进行了预测。结果表明:HATODO/ATODO共晶晶体为单斜晶系,P2_(1)/c空间群,晶体学参数为:a=8.5202(3)Å,b=10.3870(4)Å,c=13.4481(4)Å,α=90°,β=102.0510(10)°,γ=90°,V=1163.92(7)Å3,Z=4。该共晶主要依靠N^(+)─O^(-)…H型氢键作用和N─H氢键作用形成。TODO羟胺盐的分解温度为147.9℃,TODO胺盐的分解温度为167.4℃,HATODO/ATODO共晶的起始分解温度为151.2℃,撞击感度为92%,摩擦感度为76%,静电感度为129.7 mJ,计算爆速为8462 m·s^(-1),计算爆压为32.07 GPa。
4H‑[1,2,3]Triazolo[4,5‑c][1,2,5]oxadiazole 5‑oxide(TODO)hydroxylamine salts and TODO amine salts were synthesized via nitration,cyclization and salt‑forming reaction using 3,4‑diaminofuran.At the same time,an energetic eutectic(HATODO/ATODO cocrystal)was synthesized by TODO hydroxylamine salts(NH3OH+C2H5O-)and TODO amine salts(NH_(4)^(+)C_(2)H_(5)O^(-))as raw materials.Its structure was characterized by SXRD,FT‑IR and NMR,and the thermal decomposition was studied by TG‑DSC.The mechanical sensitivities were tested according to the GJB772A-97 method and the detonation performance was calculated.Results show that the structure of the HATODO/ATODO cocrystal belongs to the monoclinic crystal system,the P21/c space group,a=8.5202(3)Å,b=10.3870(4)Å,c=13.4481(4)Å,α=90°,β=102.0510(10),γ=90°,V=1163.92(7)Å^(3),Z=4.TODO hydroxylamine salts initial decomposition temperature is about 147.9℃,TODO amine salts initial decomposition tem‑perature was about 181.3℃,whereas the initial decomposition temperature of energetic HATODO/ATODO cocrystal is about 151.2℃.The sensitivities of HATODO/ATODO cocrystal is comparable to ADN.The calculated detonation velocity and pressure of HATODO/ATODO cocrystal is 8462 m·s^(-1) and 32.07 GPa.
作者
马英杰
慕萍
颜焱
任晓婷
燕超
何金选
MA Ying-jie;MU Ping;YAN Yan;REN Xiao-ting;YAN Chao;HE Jin-xuan(Science and Technology on Aerospace Chemical Power Laboratory,Hubei Institute of Aerospace Chemical Technology,Xiangyang 441003,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2022年第8期764-770,共7页
Chinese Journal of Energetic Materials
基金
国家自然科学基金项目(22005090)。
