Symmetrical cyclo-N5ˉ hydrogen bonds: stabilization mechanism of four non-metallic cyclo-pentazolate energetic salts

Author(s):  
Xiang Li ◽  
Yao Long ◽  
Chong Zhang ◽  
Chengguo Sun ◽  
Bingcheng Hu ◽  
...  

Pairing different cations (R+) to stable cyclo-N5ˉ is one main synthesize path for non-metallic cyclo-pentazolate (cyclo-N5ˉ) salts. As novel energetic materials (EMs), crystalline packing-force of cyclo-N5ˉ salts has been a...

2019 ◽  
Vol 43 (28) ◽  
pp. 11157-11163 ◽  
Author(s):  
Minxian Xu ◽  
Guangbin Cheng ◽  
Hualin Xiong ◽  
Bohan Wang ◽  
Xuehai Ju ◽  
...  

A new family of symmetric nitropyrazole and 1,2,4-triazole derivatives and its energetic salts were obtained. The positive effect of ternary hydrogen bonds improve the performances of target compounds.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jichuan Zhang ◽  
Yongan Feng ◽  
Richard J. Staples ◽  
Jiaheng Zhang ◽  
Jean’ne M. Shreeve

AbstractOwing to its simple preparation and high oxygen content, nitroformate [−C(NO2)3, NF] is an extremely attractive oxidant component for propellants and explosives. However, the poor thermostability of NF-based derivatives has been an unconquerable barrier for more than 150 years, thus hindering its application. In this study, the first example of a nitrogen-rich hydrogen-bonded organic framework (HOF-NF) is designed and constructed through self-assembly in energetic materials, in which NF anions are trapped in pores of the resulting framework via the dual force of ionic and hydrogen bonds from the strengthened framework. These factors lead to the decomposition temperature of the resulting HOF-NF moiety being 200 °C, which exceeds the challenge of thermal stability over 180 °C for the first time among NF-based compounds. A large number of NF-based compounds with high stabilities and excellent properties can be designed and synthesized on the basis of this work.


2019 ◽  
Vol 7 (20) ◽  
pp. 12468-12479 ◽  
Author(s):  
Yuangang Xu ◽  
Lili Tian ◽  
Dongxue Li ◽  
Pengcheng Wang ◽  
Ming Lu

A family of cyclo-pentazolate anion-based energetic salts was designed and synthesized by a rapid method, and these salts were evaluated as potential next generation energetic materials.


2014 ◽  
Vol 67 (7) ◽  
pp. 1037 ◽  
Author(s):  
Bingcheng Hu ◽  
Xinghui Jin ◽  
Huanqing Jia ◽  
Zuliang Liu ◽  
Chunxu Lv

A series of energetic salts based on 1,2-dinitroguanidine were successfully synthesised and fully characterised using 1H NMR, 13C NMR, and IR spectroscopy, mass spectrometry, elemental analysis, and differential scanning calorimetry. The results show that all the salts possess higher detonation properties (detonation pressures and velocities ranging from 24.8 to 30.3 GPa and 7665 to 8422 m s–1, respectively) than those of trinitrotolouene (TNT, 2,4,6-trinitromethylbenzene). The thermal stability and thermal kinetic parameters were also investigated to give a better understanding of the physical and chemical properties of these energetic salts.


2016 ◽  
Vol 45 (39) ◽  
pp. 15382-15389 ◽  
Author(s):  
Haifeng Huang ◽  
Yameng Shi ◽  
Yanfang Liu ◽  
Jun Yang

1,2,4,5-Dioxadiazine is identified as a key bridge to improve the density and detonation performance of energetic materials.


RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 288-295
Author(s):  
Jiarong Zhang ◽  
Fuqiang Bi ◽  
Junlin Zhang ◽  
Xiaohong Wang ◽  
Zhi Yang ◽  
...  

The synthesis, thermal behavior and detonation performance of MDO and its monoanionic energetic salts were comprehensively studied.


2021 ◽  
Author(s):  
Caijin Lei ◽  
Hongwei Yang ◽  
Qinghua Zhang ◽  
Guangbin Cheng

Two series of both nitrogen-rich and thermostable energetic materials as well as their energetic salts based on hetarenecarboxylic acids are now described. Among these new compounds, the neutral compounds 3...


Author(s):  
Danijela S. Kretić ◽  
Jelena I. Radovanović ◽  
Dušan Ž Veljković

Strongly positive electrostatic potential in the central areas of molecules of the energetic materials is one of the most important factors that determine the sensitivity of these molecules towards detonation....


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