3-甲氧基-6-硝胺基-1, 2, 4, 5-四嗪化脲的制备, 结构与性能研究

Translated title of the contribution: Synthesis, Structure and Properties of 3-Methoxyl-6-nitramine -1, 2, 4, 5-tetrazylated Urea

Jie Ren, Tian He Zhang, Zhi Min Li, Lin Wang, Tong Lai Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

3-Methoxy-6-nitroamino-1, 2, 4, 5-tetrazylated urea was prepared by the reaction of 3, 6-dinitroamino-1, 2, 4, 5-tetrazine (DNAT) and urea. Its structure was characterized by infrared spectroscopy, elemental analysis and nuclear magnetic resonance. The crystal structure was determined by X-ray single crystal diffraction, and the thermal properties were tested by differential scanning calorimetry (DSC), thermogravimetry-differential thermogravimetry (TG-DTG) and oxygen bombs. The impact and friction sensitivities were tested. The thermal decomposition kinetic parameters were calculated by Ozawa method and Kissinger method. Meanwhile, the critical temperature of thermal explosion was calculated by non-isothermal kinetic method. The results show that the crystal of the compound belongs to the monoclinic system, the P21/n space group, the crystal density is 1. 640 g/cm3, and each unit cell contains four 3-methoxy-6-nitroamino-1, 2, 4, 5-tetrazylated urea molecules. The unit cell parameters are: a=0.71799(14)nm, b=1.8109(4)nm, c=0.95761(19)nm, β=108.02(3)°, V=1. 1840(4) nm3. The exothermic peak temperature of the compound is 147.7℃, and the formation enthalpy is -1142.63kJ/mol. The compound has an impact sensitivity (H50) of 13 cm and is insensitive to frictional stimuli, which can be considered as a potential energetic compound.

Translated title of the contributionSynthesis, Structure and Properties of 3-Methoxyl-6-nitramine -1, 2, 4, 5-tetrazylated Urea
Original languageChinese (Traditional)
Pages (from-to)438-444
Number of pages7
JournalHuozhayao Xuebao/Chinese Journal of Explosives and Propellants
Volume42
Issue number5
DOIs
Publication statusPublished - 1 Oct 2019

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Ren, J., Zhang, T. H., Li, Z. M., Wang, L., & Zhang, T. L. (2019). 3-甲氧基-6-硝胺基-1, 2, 4, 5-四嗪化脲的制备, 结构与性能研究. Huozhayao Xuebao/Chinese Journal of Explosives and Propellants, 42(5), 438-444. https://doi.org/10.14077/j.issn.1007-7812.2019.05.003