An Advanced Heat-Resistant Explosive through Regional Isomerization and Intramolecular Integration DOI

Chengchuang Li,

Teng Zhu,

Jie Tang

et al.

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Among all compounds constructed by intramolecular integration, 4 (Td = 321 °C, D 8799 m s-1, IS 35 J) that integrates ortho amino nitro group and tetrazole framework possesses a much better comprehensive performance than most widely used heat-resistant explosive HNS 318 7612 5 J), which suggest it might be candidate for advanced explosive. Compared with 8, isomer shows significant improvement in density, thermal stability sensitivity, may caused the relatively strong structural aromaticity, hydrogen bond large face-to-face π-π interaction surfaces strength.

Language: Английский

Promising Thermally Stable Energetic Materials with the Combination of Pyrazole–1,3,4-Oxadiazole and Pyrazole–1,2,4-Triazole Backbones: Facile Synthesis and Energetic Performance DOI
Abhishek Kumar Yadav, Vikas D. Ghule, Srinivas Dharavath

et al.

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(44), P. 49898 - 49908

Published: Oct. 26, 2022

Thermally stable energetic materials have broad applications in the deep mining, oil and natural exploration, aerospace industries. The quest for thermally (heat-resistant) with high energy output low sensitivity has fascinated many researchers worldwide. In this study, two different series of salts based on pyrazole–oxadiazole pyrazole–triazole (3–23) explosophoric groups been synthesized a simple straightforward manner. All newly compounds were fully characterized by IR, ESI-MS, multinuclear NMR spectroscopy, elemental analysis, thermogravimetric analysis–differential scanning calorimetry measurements. structures 3, 7, 22 supported single-crystal X-ray diffraction studies. density, heat formation, properties (detonation velocity detonation pressure) all range between 1.75 1.94 g cm–3, 0.73 to 2.44 kJ g–1, 7689 9139 m s–1, 23.3 31.5 GPa, respectively. are insensitive impact (>30 J) friction (>360 N). addition, 4, 6, 10, 14, 17, 21, 22, 23 show onset decomposition temperature (Td 238 397 °C) than benchmark RDX = 210 °C), HMX (279 HNS (318 °C). It is noteworthy that backbones greatly influence their physicochemical properties. Overall, study offers perspective nitrogen-rich explores relationship structure performance.

Language: Английский

Citations

59

Polynitro-Functionalized Azopyrazole with High Performance and Low Sensitivity as Novel Energetic Materials DOI
Guojie Zhang, Zhenxin Yi, Guangbin Cheng

et al.

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(8), P. 10594 - 10604

Published: Feb. 22, 2022

The development of energetic materials is still facing a huge challenge because the relationship between energy and sensitivity usually contradictory: high always accompanied with low sensitivity. Here, high-energy, low-sensitivity polynitro-functionalized azopyrazole (TNAP) its salts have been synthesized. structural characterization these compounds was analyzed by elemental analysis, 1H 13C NMR spectroscopies, infrared spectroscopy. single-crystal structure K2TNAP, TNAP, 5, 6 obtained X-ray diffraction, K2TNAP novel metal-organic framework. calculated detonation properties TNAP (9040 m s-1 36.0 GPa) are superior to that RDX (8796 33.6 GPa). In addition, also has lower mechanical (IS > 40 J, FS = 244 N) higher decomposition temperature (Td 221 °C) than 7.4 120 N, Td 204 °C). These experimental results suggest may become new candidate for secondary explosives.

Language: Английский

Citations

41

Achieving Ultra-High Heat Resistance of Novel Energetic Materials through Hydrogen Bonding and Extended π-Conjugation Strategy DOI
Xiue Jiang,

Dangyue Yin,

Siwei Song

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 13231 - 13239

Published: Jan. 1, 2024

Two high-performance heat-resistant energetic materials were developed via a synergistic strategy of designing hydrogen bonding networks and expanding the π-conjugation system.

Language: Английский

Citations

9

Unraveling the direct effect of hydrogen bonding on density and thermostability of energetic materials through isomerism DOI
Qi Sun, Weixing Chen, Ning Ding

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 444, P. 136539 - 136539

Published: April 22, 2022

Language: Английский

Citations

33

Silver(I)-Based Molecular Perovskite Energetic Compounds with Exceptional Thermal Stability and Energetic Performance DOI
Yu Shang, Shao‐Li Chen, Zhihong Yu

et al.

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(9), P. 4143 - 4149

Published: Feb. 22, 2022

In recent years, molecular perovskite energetic materials have attracted more attention because of their simple synthesis processes, high thermal stabilities, excellent performances, and great significance as a design platform for materials. To explore the possibility application in heat-resistant explosives, four silver(I)-based compounds, (H2A)[Ag(ClO4)3], where H2A = piperazine-1,4-diium (H2pz2+) PAP-5, 1-methyl-piperazine-1,4-diium (H2mpz2+) PAP-M5, homopiperazine-1,4-diium (H2hpz2+) PAP-H5, 1,4-diazabicyclo[2.2.2]octane-1,4-diium (H2dabco2+) DAP-5, were synthesized by one-pot self-assembly strategy structurally characterized. The single-crystal structures indicated that DAP-5 possess cubic while PAP-H5 possesses hexagonal structure. Differential analyses showed onset decomposition temperatures are >308.3 °C. For PAP-5 they not only exceptional calculated detonation parameters (D values 8.961 8.534 km s-1 P 42.4 37.9 GPa, respectively) but also proper mechanical sensitivity (impact sensitivities ≤10 J 3 friction ≤5N both DAP-5) thus interest potential primary explosive components.

Language: Английский

Citations

32

Trinitromethyl groups-driven fused high energy compound featuring superior comprehensive performances DOI

Chengchuang Li,

Teng Zhu,

Jie Tang

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 479, P. 147355 - 147355

Published: Nov. 24, 2023

Language: Английский

Citations

22

Interpol review of the analysis and detection of explosives and explosives residues DOI Creative Commons

Douglas J. Klapec,

Greg Czarnopys,

Julie Pannuto

et al.

Forensic Science International Synergy, Journal Year: 2023, Volume and Issue: 6, P. 100298 - 100298

Published: Jan. 1, 2023

Language: Английский

Citations

21

Polynitro-functionalized 4-phenyl-1H-pyrazoles as heat-resistant explosives DOI
Krishna Pandey, Prachi Bhatia,

Khwaja Mohammad

et al.

Organic & Biomolecular Chemistry, Journal Year: 2023, Volume and Issue: 21(32), P. 6604 - 6616

Published: Jan. 1, 2023

This work demonstrates the synthesis, characterization, and energetic properties’ evaluation of polynitro-functionalized 4-phenyl-1 H -pyrazole-based heat-resistant explosives.

Language: Английский

Citations

21

Thermal stability of azole-rich energetic compounds: their structure, density, enthalpy of formation and energetic properties DOI
Xiangyan Miao, Xinbo Yang, Yuchuan Li

et al.

Physical Chemistry Chemical Physics, Journal Year: 2023, Volume and Issue: 25(28), P. 18523 - 18544

Published: Jan. 1, 2023

Increasing the strength and number of hydrogen bonds azoles expanding π–π stacking area are key factors to improve thermal stability, which provides a valuable way for developing energetic materials with higher energy stability.

Language: Английский

Citations

19

Advanced ultra heat-resistant explosives with multiple heterocyclic skeletons of hydrogen bond network DOI

Chengchuang Li,

Teng Zhu,

Chao Wang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(36), P. 24188 - 24194

Published: Jan. 1, 2024

H4 ( T d = 365 °C, D 8844 m s −1 ) synthesized in this work possesses both super heat resistance and high explosive properties, strongly supporting it as a candidate for advanced ultra heat-resistant explosives.

Language: Английский

Citations

7