Synthesis, Crystal Structure and Properties of Ionic Energetic Compounds Based on 4‑Hydroxyl‑3, 5‑ dinitropyrazolate Anion

被引：0
|
作者：
Wu B. [1 ]
Jiang X. [1 ]
Hu P. [2 ]
Du H. [1 ]
Liu R. [2 ]
Gao Z. [2 ]
机构：
[1] State Key Laboratory of Environment‑friendly Energy Materials, Southwest University of Science and Technology, Mianyang
[2] School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang
来源：
Hanneng Cailiao/Chinese Journal of Energetic Materials | 2021年 / 29卷 / 08期
关键词：
4‑hydroxyl‑3; 5‑dinitropyrazolate; Crystal structure; Energetic compound; Mechanical sensitivity; Thermal decomposition;
D O I：
10.11943/CJEM2021113
中图分类号：
学科分类号：
摘要：
4‑Hydroxy‑3, 5‑dinitropyrazole(H‑DNOP, 2) was synthesized from 3, 5‑dinitro4‑bromopyrazole(1) by hydrolysis and neutralization reaction. Three kinds of ionic energetic compounds (3-5) of DNOP were designed and synthesized by using its acidity. The structures of compounds 3-5 were characterized by FT‑IR, NMR spectrum, elemental analysis as well as single‑crystal X‑ray diffraction, and their thermal stabilities were investigated by differential scanning calorimetry and thermogravimetry (DSC‑TG). The maximum decomposition temperature of hydrazine salt (3) was Td=210.3 ℃. The impact sensitivity and friction sensitivity were measured by BAM method, while the detonation parameters were predicted based on the isodesmic reactions and the Kamlet‑Jacobs equation. The results show that the measured impact sensitivity and friction sensitivity of the threecompounds 3-5 are all 36 J and 360 N, which are less sensitive than those of TNT(IS=15 J, FS=353 N) and RDX(IS=7.4 J, FS=120 N). The theoretical detonation velocities of the three compounds are 7758-8288 m·s-1, and the detonation pressures are 26.06-29.96 GPa, respectively. © 2021, Editorial Board of Chinese Journal of Energetic Materials. All right reserved.
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页码：713 / 720
页数：7
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