Synthesis, Crystal Structure and Thermal Decomposition Behavior of 6-Aminoguanidine -1, 2, 4, 5-tetrazine-3-one

被引：0

作者：

Zheng W.-W. ^{[1
]}

Bai Y. ^{[1
]}

Tian H.-W. ^{[1
]}

Guo Z.-Q. ^{[1
]}

Ma H.-X. ^{[1
]}

机构：

[1] School of Chemical Engineering, Northwest University, Xi'an

来源：

Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2020年 / 43卷 / 06期

关键词：

1; 2; 4; 5-tetrazine; Crystal structure; Ketones; Nitrogen-rich energetic compounds; Organic chemistry; Oxytetrazine derivatives;

D O I：

10.14077/j.issn.1007-7812.202007029

中图分类号：

学科分类号：

摘要：

Using 3, 6-bis(3, 5-dimethyllpyrazolyl)-1, 2, 4, 5-tetrazine(BT) and nitroguanidine as raw materials, 6-aminoguanidine-1, 2, 4, 5-tetrazine-3-one(AGTzO) was synthesized by the reactions of nucleophilic substitution and reduction. The structure of AGTzO was characterized by single crystal X-ray diffraction. The thermal decomposition behavior of AGTzO was analyzed by differential scanning calorimetry (DSC) and thermogravimetry (TG-DTG). The kinetic parameters were obtained by Kissinger and Ozawa methods using DSC curves at different heating rates, and the thermal safety was analyzed. The results show that the crystal of AGTzO•H2O belongs to the orthorhombic system, Pbca space group. Each unit cell contains eight AGTzO•H2O molecules, and the crystal density is 1.639g/cm3. The apparent activation energy (E) and pre-exponential constant (A) are 173.03 kJ/mol and 1015.96s-1, respectively. The self-accelerating decomposition temperature (TSADT), the thermal ignition temperature (Tbe) and the critical temperature of thermal explosion (Tbp) are 232.05, 234.93, and 236.91℃, respectively. The nitrogen equivalent formula was used to calculate the detonation velocity D (8421m/s) and the detonation pressure p (30.4GPa) of AGTzO•H2O. Its detonation performance is close to that of TATB (D=8114m/s, p=31.2GPa). © 2020, Editorial Board of Journal of Explosives & Propellants. All right reserved.

引用

页码：584 / 590

页数：6

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