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An Advanced Heat-Resistant Explosive through Regional Isomerization and Intramolecular Integration
Chengchuang Li1, Teng Zhu1, Jie Tang1
1School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing 210094, P. R. China.
The Journal of Organic Chemistry
|March 25, 2025
Summary
A novel heat-resistant explosive, compound 4, demonstrates superior performance over HNS due to its integrated ortho amino nitro group and tetrazole framework. This advanced explosive shows enhanced density, thermal stability, and sensitivity.
Area of Science:
- Materials Science
- Energetic Materials Chemistry
Background:
- High-performance explosives are critical for various applications.
- Existing heat-resistant explosives like HNS have limitations in comprehensive performance.
Purpose of the Study:
- To synthesize and evaluate a novel compound for advanced heat-resistant explosive applications.
- To compare the performance of the new compound with established explosives.
Main Methods:
- Intramolecular integration of ortho amino nitro group and tetrazole framework.
- Performance evaluation including thermal stability (Td), detonation velocity (D), and impact sensitivity (IS).
Main Results:
- Compound 4 exhibited a higher comprehensive performance than HNS, with Td = 321 °C, D = 8799 m s⁻¹, and IS = 35 J.
- Isomer 4 showed significant improvements in density, thermal stability, and sensitivity compared to isomer 8.
- Enhanced properties attributed to strong structural aromaticity, hydrogen bonding, and π-π interactions.
Conclusions:
- Compound 4 is a promising candidate for advanced heat-resistant explosives.
- The molecular design incorporating specific functional groups and structural features enhances explosive performance.
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