Two novel energetic alkalic metal salts of 3,6-bis（1H-1,2,3,4-tetrazol-5-yl-amino）-l,2,4,5-tetrazine （BTATz）, Li2（BTATz）. 6H20（compound 1） and Na2（BTATz）. 2H20（compound 2）, have been synthesized by the rea...Two novel energetic alkalic metal salts of 3,6-bis（1H-1,2,3,4-tetrazol-5-yl-amino）-l,2,4,5-tetrazine （BTATz）, Li2（BTATz）. 6H20（compound 1） and Na2（BTATz）. 2H20（compound 2）, have been synthesized by the reac- tion of BTATz with lithinnl hydroxide or sodium hydroxide in dimethylsulfoxide（DMSO） solution, respectively, and their structures were characterized by means of elemental analysis and Fourier transform infrared spectrometry（FTIR） Moreover, the single-crystal structure of compound 1 was determined by single crystal X-ray diffraction. It crystal- lizes in the monoclinic space group P1/c. Furthermore, their thermal decomposition behaviors were investigated by means of differential scanning calorimetry（DSC） and thermogravimetry-differential thermal gravimetry（TG-DTG）. The results show that the exothermic decomposition peak temperatures for compounds 1 and 2 were 642.65 and 644.46 K, respectively, and the kinetic equations of the main exothermic decomposition were also derived from non-isothermal method. Additionally, the thermal safety of the two compounds was evaluated by calculating self-accelerating decomposition temperature（TSADT） and critical temperature of thermal explosion（Tb）. The results（the TSADT and Tb values are 605.43 and 635.69 K for compound 1; 607.38 and 638.96 K for compound 2） reveal that the two compounds exhibit better thermal safety than BTATz.展开更多
基金Supported by the National Natural Science Foundation of China（Nos.21101127, 21673179） and the National Defense Pre-Research Foundation of China（No.9140A28020111BQ3401）.
文摘Two novel energetic alkalic metal salts of 3,6-bis（1H-1,2,3,4-tetrazol-5-yl-amino）-l,2,4,5-tetrazine （BTATz）, Li2（BTATz）. 6H20（compound 1） and Na2（BTATz）. 2H20（compound 2）, have been synthesized by the reac- tion of BTATz with lithinnl hydroxide or sodium hydroxide in dimethylsulfoxide（DMSO） solution, respectively, and their structures were characterized by means of elemental analysis and Fourier transform infrared spectrometry（FTIR） Moreover, the single-crystal structure of compound 1 was determined by single crystal X-ray diffraction. It crystal- lizes in the monoclinic space group P1/c. Furthermore, their thermal decomposition behaviors were investigated by means of differential scanning calorimetry（DSC） and thermogravimetry-differential thermal gravimetry（TG-DTG）. The results show that the exothermic decomposition peak temperatures for compounds 1 and 2 were 642.65 and 644.46 K, respectively, and the kinetic equations of the main exothermic decomposition were also derived from non-isothermal method. Additionally, the thermal safety of the two compounds was evaluated by calculating self-accelerating decomposition temperature（TSADT） and critical temperature of thermal explosion（Tb）. The results（the TSADT and Tb values are 605.43 and 635.69 K for compound 1; 607.38 and 638.96 K for compound 2） reveal that the two compounds exhibit better thermal safety than BTATz.
