Pyrazolo[1,5-a]pyrimidine with similar “amino-nitro-amino” arrangement characteristics to TATB: A novel heat-resistant explosive with fused structure

CrystEngComm ◽  
2021 ◽  
Author(s):  
Feng Yang ◽  
Yuangang Xu ◽  
Pengcheng Wang ◽  
Qiuhan Lin ◽  
Fu-qiang Bi ◽  
...  

Exploring heat-resistant explosives that are easy to synthesize is a major challenge in the research of energetic materials. In this study, two novel fused-ring energetic compounds 4 and 5 were...

Author(s):  
Jean'ne M. Shreeve ◽  
Shangbiao Feng ◽  
Ping Yin ◽  
Chunlin He ◽  
Si-Ping Pang

A highly efficient strategy of two different types of nitrogen-rich heterocyclic energetic compounds, featuring a single NH-bridge (-NH-) and a fused ring, was demonstrated by virtue of Dimroth rearrangement reactions...


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jing Zhou ◽  
Li Ding ◽  
Yong Zhu ◽  
Bozhou Wang ◽  
Xiangzhi Li ◽  
...  

AbstractOrganic inner salt structures are ideal backbones for heat-resistant energetic materials and systematic studies towards the thermal properties of energetic organic inner salt structures are crucial to their applications. Herein, we report a comparative thermal research of two energetic organic inner salts with different tetraazapentalene backbones. Detailed thermal decomposition behaviors and kinetics were investigated through differential scanning calorimetry and thermogravimetric analysis (DSC-TG) methods, showing that the thermal stability of the inner salts is higher than most of the traditional heat-resistant energetic materials. Further studies towards the thermal decomposition mechanism were carried out through condensed-phase thermolysis/Fourier-transform infrared (in-situ FTIR) spectroscopy and the combination of differential scanning calorimetry-thermogravimetry-mass spectrometry-Fourier-transform infrared spectroscopy (DSC-TG-MS-FTIR) techniques. The experiment and calculation results prove that the arrangement of the inner salt backbones has great influence on the thermal decompositions of the corresponding energetic materials. The weak N4-N5 bond in “y-” pattern tetraazapentalene backbone lead to early decomposition process and the “z-” pattern tetraazapentalene backbone exhibits more concentrated decomposition behaviors.


2018 ◽  
Vol 6 (38) ◽  
pp. 18669-18676 ◽  
Author(s):  
Igor L. Dalinger ◽  
Olga V. Serushkina ◽  
Nikita V. Muravyev ◽  
Dmitry B. Meerov ◽  
Evgeniy A. Miroshnichenko ◽  
...  

The azasydnone unit is a promising explosophoric block for future generations of highly thermostable and dense energetic materials.


CrystEngComm ◽  
2020 ◽  
Vol 22 (27) ◽  
pp. 4573-4579
Author(s):  
Xiaoming Yang ◽  
Yanna Wang ◽  
Weijing Zhang ◽  
Yanli Yin ◽  
Zhimin Li ◽  
...  

By introducing hydroxymethyl into nitrogen-rich heterocyclic compounds, we designed and synthesized a new ligand. The three dimensional (3D) energetic metal complexes sodium and potassium salts of new ligand were investigated for heat-resistant energetic materials.


2019 ◽  
Vol 7 (13) ◽  
pp. 7875-7884 ◽  
Author(s):  
Yingle Liu ◽  
Gang Zhao ◽  
Yongxing Tang ◽  
Jichuan Zhang ◽  
Lu Hu ◽  
...  

Next-generation fused ring energetic materials for different applications were designed by regulating mechanical sensitivity.


2019 ◽  
Vol 48 (10) ◽  
pp. 3237-3242 ◽  
Author(s):  
Yingle Liu ◽  
Chunlin He ◽  
Yongxing Tang ◽  
Gregory H. Imler ◽  
Damon A. Parrish ◽  
...  

A class of polyazole energetic compounds (combination of tetrazolyl, dinitromethyl and triazole) was obtained from 4,5-dicyanotriazole.


2019 ◽  
Vol 43 (26) ◽  
pp. 10429-10433 ◽  
Author(s):  
Chao Yan ◽  
Guangbin Cheng ◽  
Kangcai Wang ◽  
Tianlin Liu ◽  
Yunhe Jin ◽  
...  

Unexpected derivatization reaction of FOX-7 affords three cyclic triazinane-based energetic compounds featuring the FOX-7 backbone, which enriches the exciting reactive chemistry of FOX-7.


RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5419-5427 ◽  
Author(s):  
Qun Zeng ◽  
Yanyang Qu ◽  
Jinshan Li ◽  
Hui Huang

Tris([1,2,4]triazolo)[4,3-a:4′,3′-c:4′′,3′′-e][1,3,5]triazine inherited from triazole and triazine is suggested theoretically as a new framework for insensitive and high-energetic materials.


2015 ◽  
Vol 17 (8) ◽  
pp. 5840-5848 ◽  
Author(s):  
Piao He ◽  
Jian-Guo Zhang ◽  
Kun Wang ◽  
Xin Yin ◽  
Xin Jin ◽  
...  

A combination of the tetrazole with an insensitive fragment of FOX-7 makes two novel compounds DNAT and DNABT very promising energetic materials.


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