Potassium 5,5＇-azobis（1-nitraminotetrazolate）,（K2ABNAT）, a new green primary explosive, was synthesized via a safe and convenient synthetic procedure based on methylcarbazate and cyanogen azide. The compound was ...Potassium 5,5＇-azobis（1-nitraminotetrazolate）,（K2ABNAT）, a new green primary explosive, was synthesized via a safe and convenient synthetic procedure based on methylcarbazate and cyanogen azide. The compound was characterized by single-crystal X-ray diffraction, IR spectroscopy, Raman spectroscopy, multinuclear NMR spectroscopy, elemental analysis, and differential scanning calorimetry（DSC）. With the calculated（CBS-4M） heat of formation（617.0 kJ/mol） and the room temperature X-ray density（2.11 g/cm^3）, impressive values for the detonation parameters such as detonation velocity（8367 m/s） and pressure（31.5 GPa） were computed using the EXPLO5 program. The superior calculated energetic performance show it could serve as a green replacement for the widely used primary explosive,lead（II） azide, which contains toxic ingredient.展开更多
The selected 18 energetic compounds were theoretically investigated by using the density functional theory（DFT） quantum mechanical code,DMol3,and the Hansen solubility parameters（HSPs） analyses.The results showed ...The selected 18 energetic compounds were theoretically investigated by using the density functional theory（DFT） quantum mechanical code,DMol3,and the Hansen solubility parameters（HSPs） analyses.The results showed that 4-nitrotoluene,4-nitrophenol,N N0-dimethyl-N N0-diphenylurea and N N0-diethyl-N N0-diphenylurea contain relatively electron-rich aromatic rings.Four satisfactory energetic precursors with electron-rich rings were quickly and effectively found by electrostatic potential（ESP）surfaces and HSPs analyses.The results also indicated that the absolute value of the lowest unoccupied molecular orbital（LUMO） of the energetic precursors with electron-rich rings often was less than3.00 eV,and the absolute value of LUMO of the energetic precursors with electron deficient rings was often more than 3.00 eV.Additionally,we found that with at least two eutectic points was a prerequisite for two precursors to form a cocrystal.展开更多
基金the National Natural Science Foundation of China (No. 21373157)
文摘Potassium 5,5＇-azobis（1-nitraminotetrazolate）,（K2ABNAT）, a new green primary explosive, was synthesized via a safe and convenient synthetic procedure based on methylcarbazate and cyanogen azide. The compound was characterized by single-crystal X-ray diffraction, IR spectroscopy, Raman spectroscopy, multinuclear NMR spectroscopy, elemental analysis, and differential scanning calorimetry（DSC）. With the calculated（CBS-4M） heat of formation（617.0 kJ/mol） and the room temperature X-ray density（2.11 g/cm^3）, impressive values for the detonation parameters such as detonation velocity（8367 m/s） and pressure（31.5 GPa） were computed using the EXPLO5 program. The superior calculated energetic performance show it could serve as a green replacement for the widely used primary explosive,lead（II） azide, which contains toxic ingredient.
基金financial support from National Natural Science Foundation of China–CAEP project (No. 11076002)Science and Technology Found of CAEP (No. 2012A0302013)
文摘The selected 18 energetic compounds were theoretically investigated by using the density functional theory（DFT） quantum mechanical code,DMol3,and the Hansen solubility parameters（HSPs） analyses.The results showed that 4-nitrotoluene,4-nitrophenol,N N0-dimethyl-N N0-diphenylurea and N N0-diethyl-N N0-diphenylurea contain relatively electron-rich aromatic rings.Four satisfactory energetic precursors with electron-rich rings were quickly and effectively found by electrostatic potential（ESP）surfaces and HSPs analyses.The results also indicated that the absolute value of the lowest unoccupied molecular orbital（LUMO） of the energetic precursors with electron-rich rings often was less than3.00 eV,and the absolute value of LUMO of the energetic precursors with electron deficient rings was often more than 3.00 eV.Additionally,we found that with at least two eutectic points was a prerequisite for two precursors to form a cocrystal.
