Bistetrazoles Featuring Ultra Thermal Stability DOI
Jatinder Singh, Richard J. Staples, Jean’ne M. Shreeve

и другие.

Organic Letters, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

As the global demand for mining resources continues to rise and as advances in aerospace exploration accelerate, need high-performance energetic materials capable of withstanding extreme conditions has become increasingly critical. This study focuses on rational design synthesis a series molecules incorporating bistetrazole chiral diol functional groups. The inclusion units enhances performance stability these compounds, while groups contribute their structural integrity.

Язык: Английский

Zwitterionic fused pyrazolo-triazole based high performing energetic materials DOI
Parasar Kumar, Navaneet Kumar, Vikas D. Ghule

и другие.

Chemical Communications, Год журнала: 2024, Номер 60(12), С. 1646 - 1649

Опубликована: Янв. 1, 2024

A series of nitrogen-rich fused energetic materials were synthesized from commercially available inexpensive starting and fully characterized using 1 H 13 C NMR, IR spectroscopy, elemental analysis, DSC.

Язык: Английский

Процитировано

19

1,2,5‐Oxadiazole‐Based High‐Energy‐Density Materials: Synthesis and Performance DOI
Леонид Л. Ферштат, Нина Н. Махова

ChemPlusChem, Год журнала: 2019, Номер 85(1), С. 13 - 42

Опубликована: Окт. 16, 2019

Abstract This Review covers the synthesis and performance of most promising 1,2,5‐oxadiazole‐based high‐energy density materials (HEDMs). These comprise a 1,2,5‐oxadiazole subunit as key structural motif linked to various acyclic explosophoric groups or nitrogen‐rich nitrogen‐oxygen azoles: 1,2,4‐triazole, tetrazole, 1,2,4‐ 1,3,4‐oxadiazoles. Energetic alliances two more rings directly through heteroatom spacers are also presented. Particular attention is devoted installation different explosophores: nitro, nitramino, azo, azoxy, dinitromethyl, trinitroethyl moieties their combination. Promising environmentally benign energetic with high detonation velocity pressure, outstanding insensitivity summarized. Overall, presented may be considered next‐generation high‐performance that superior commonly used traditional explosives (TNT, PETN, RDX, HMX).

Язык: Английский

Процитировано

147

Pyrazol-triazole energetic hybrid with high thermal stability and decreased sensitivity: facile synthesis, characterization and promising performance DOI
Qing Ma, Guojie Zhang, Jie Li

и другие.

Chemical Engineering Journal, Год журнала: 2019, Номер 379, С. 122331 - 122331

Опубликована: Июль 30, 2019

Язык: Английский

Процитировано

85

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

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2022, Номер 14(44), С. 49898 - 49908

Опубликована: Окт. 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.

Язык: Английский

Процитировано

62

Strategies for constructing melt-castable energetic materials: A critical review DOI Creative Commons
Qing Ma, Zhenqi Zhang, Wei Yang

и другие.

Energetic Materials Frontiers, Год журнала: 2021, Номер 2(1), С. 69 - 85

Опубликована: Фев. 16, 2021

Melt-castable energetic materials are utilized in a wide variety of civilian and military applications, such as construction, demolition, underwater blasting, mining, oil well perforation, munitions. 2,4,6-Trinitrotoluene (TNT) is traditionally-applied melt-castable explosive; however, its low physical-performance output, environmental pollution characteristics, safety issues restrict further development towards future industrial applications. This review addresses advances the design, synthesis, characterization new featuring fluorine, gem-dinitrofluoroethyl, nitrate ester groups nitrofurazan 1,2,4-oxadizaole skeletons, which have led to novel high-performance TNT candidates between 2012 2020.

Язык: Английский

Процитировано

59

Energetic materials based on poly furazan and furoxan structures DOI
Jun-Lin Zhang, Jing Zhou,

Fuqiang Bi

и другие.

Chinese Chemical Letters, Год журнала: 2020, Номер 31(9), С. 2375 - 2394

Опубликована: Янв. 13, 2020

Язык: Английский

Процитировано

66

Embellishing bis-1,2,4-triazole with four nitroamino groups: advanced high-energy-density materials with remarkable performance and good stability DOI

Qing Lang,

Qi Sun, Qian Wang

и другие.

Journal of Materials Chemistry A, Год журнала: 2020, Номер 8(23), С. 11752 - 11760

Опубликована: Янв. 1, 2020

Tetranitroamino HEDMs based on bis-triazole with comparable performance to CL-20 (D: 9421 and 9609 m s−1) superior stability.

Язык: Английский

Процитировано

61

Recent advances on the nitrogen-rich 1,2,4-oxadiazole-azoles-based energetic materials DOI Creative Commons

Wenli Cao,

Qamar‐un‐Nisa Tariq,

Zhimin Li

и другие.

Defence Technology, Год журнала: 2021, Номер 18(3), С. 344 - 367

Опубликована: Дек. 13, 2021

This review covers recent advances in the synthesis and energetic performance of nitrogen-rich 1,2,4-oxadiazole-azoles-based materials. These materials comprise 1,2,4-oxadiazole subunit as a key structural motif linked to different or nitrogen-oxygen azoles: tetrazole, furazan, furoxan, 1,3,4-oxadiazole, pyrazole, triazole. Particular attention is devoted introduction various groups including nitro, nitramino, azo, azoxy, dinitromethyl, trinitroethyl moieties, their combination. The physicochemical available parameters density, decomposition temperature, heat formation, detonation pressure, velocity, impact sensitivity, friction sensitivity typical compounds are also provided analyzed. Eventually, it was obtained that several screened exhibit superior properties outstanding insensitivities, which can be classified new family high-performance Additionally, still have many thorough works further exploited studied, expecting get very promising insensitive high explosives for practical application industrialization.

Язык: Английский

Процитировано

49

Nitrogen-rich tetracyclic-based heterocyclic energetic materials DOI Creative Commons
Jie Tang, Hongwei Yang,

Guang-bin Cheng

и другие.

Energetic Materials Frontiers, Год журнала: 2023, Номер 4(2), С. 110 - 122

Опубликована: Май 18, 2023

This review provides numerous studies on nitrogen-rich tetracyclic-based heterocyclic energetic materials including oxadiazole, tetrazole, triazole, pyrazole, imidazole and tetrazine. The article mainly describes the construction method of skeleton, explosive modification, properties tetracyclic materials. structure-property relationship was obtained by comparing a series Finally, authors summarize synthesis laws skeletons, which reference for development in future.

Язык: Английский

Процитировано

20

Chemical Descriptors for a Large-Scale Study on Drop-Weight Impact Sensitivity of High Explosives DOI Creative Commons
Frank W. Marrs, J. Davis, Alexandra C. Burch

и другие.

Journal of Chemical Information and Modeling, Год журнала: 2023, Номер 63(3), С. 753 - 769

Опубликована: Янв. 25, 2023

The drop-weight impact test is an experiment that has been used for nearly 80 years to evaluate handling sensitivity of high explosives. Although the results this are known have large statistical uncertainties, it one most common tests due its accessibility and modest material requirements. In paper, we compile a data set (mainly performed at Los Alamos National Laboratory), along with compendium molecular chemical descriptors explosives under test. These consist over 500 unique explosives, 1000 repeat tests, 100 descriptors, total about 1500 observations. We use random forest methods estimate model explosive as function properties Our predicts well across wide range types, spanning broad performance sensitivity. find related performance, such heat explosion, oxygen balance, functional group, highly predictive Yet, models omit many these still perform well. suggest there not or even several factors explain sensitivity, but complex, interrelated effects play.

Язык: Английский

Процитировано

19