Graphisches Inhaltsverzeichnis: Angew. Chem. 10/2021 DOI Open Access
Takaaki Sato, Noritaka Chida,

Al Über Die

et al.

Angewandte Chemie, Journal Year: 2021, Volume and Issue: 133(10), P. 5014 - 5036

Published: Feb. 22, 2021

This new decade poses many challenges at different levels.The SIDE vision for Chemistry 2030 gathers the main recommendations from various organizations and initiatives provides a roadmap advancement of chemistry to respond increasingly complex interconnected challenges.

Language: Английский

N-Acetonitrile functionalized 3-nitrotriazole: Precursor to nitrogen rich stable and insensitive energetic materials DOI Creative Commons
Prachi Bhatia,

Peddapothula Sahithi Priya,

Priyanka Das

et al.

Energetic Materials Frontiers, Journal Year: 2024, Volume and Issue: 5(1), P. 8 - 16

Published: Feb. 23, 2024

In the field of energetic materials, prime attention has been given to synthesis environmentally compatible materials having an adequate balance between energy and stability. For this purpose, nitrogen-rich heterocyclic rings have contributed as pivotal frameworks. Nitro-functionalized 1,2,4-triazoles profusely used a constituent for synthesizing high-performing (EMs) due their high nitrogen content, good thermal stability, modifiable sites via functionalization. Combination with different scaffold may provide opportunity accessible tailoring. work, in effort investigate potential 3-nitrotriazoles, its N-acetonitrile derivative 2 was synthesized, which further converted various explosophores. N-methylene-C bridged asymmetrically connected tetrazole (3) 1,2,4-oxadiazole (9 10) based EMs synthesized. Further tuning properties salt formation strategy employed compounds 4–7, 11 12. 1,2,4-oxadiazole-based compound 9 also confirmed X-ray diffraction analysis, 10 analyzed 15N NMR spectroscopy. Compounds 3, 4, 5, 7 exhibited stabilities were found be insensitive towards impact friction. 6, detonation performance comparable conventional explosive TATB.

Language: Английский

Citations

10
Review on the Synthesis and Performance for 1,3,4‐Oxadiazole‐Based Energetic Materials DOI
Yao Du,

Zhongkai Qu,

Huan‐Chün Wang

et al.

Propellants Explosives Pyrotechnics, Journal Year: 2021, Volume and Issue: 46(6), P. 860 - 874

Published: April 23, 2021

Abstract Energetic materials have been widely used in both military and civilian fields. The development of new high‐energy with improved performance enhanced stability is critical for promoting future space applications. Recently, researchers the field energetic paid significant attention to oxadiazole‐based compounds, among which 1,3,4‐oxadiazole demonstrates moderate energy levels better stability, owing absence readily cleaved N−O bonds compared other oxadiazole isomers, such as 1,2,4‐oxadiazole 1,2,5‐oxadiazole. Therefore, an exceptional explosophoric motif efficient compromise between several outstanding achieved based on combination units various functional groups or rings, polynitrobenzene, furazan, pyrazole, itself. This review provides overview 1,3,4‐oxadiazole‐based during past few years, outlines their synthesis performance, contrasts them conventional materials. Owing convenience synthetic routes excellent properties, skeleton may be considered next‐generation high‐performance specifically heat‐resistant explosives insensitive explosives.

Language: Английский

Citations

25
Hydrogen bonding distribution and its effect on sensitivity of planar tricyclic polyazole energetic materials DOI
Han Wang, Yingle Liu, Qiangqiang Liu

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 433, P. 134479 - 134479

Published: Jan. 6, 2022

Language: Английский

Citations

19
Construction of Coplanar Bicyclic Backbones for 1,2,4‐Triazole‐1,2,4‐Oxadiazole‐Derived Energetic Materials DOI

Wenli Cao,

Wen‐Shuai Dong,

Zujia Lu

et al.

Chemistry - A European Journal, Journal Year: 2021, Volume and Issue: 27(55), P. 13807 - 13818

Published: July 29, 2021

Abstract Combining different nitrogen‐rich heterocycles into a molecule can fine‐tune its energetic performance and physical properties as well safety for use in materials. Here, 1,2,4‐oxadiazole was incorporated 1,2,4‐triazole to construct new backbones. 3‐(5‐Amino‐1 H ‐1,2,4‐triazol‐3‐yl)‐1,2,4‐oxadiazol‐5‐amine ( 5 ) designed synthesized. Nitramino‐functionalized N ‐(5‐(5‐amino‐1,2,4‐oxadiazol‐3‐yl)‐3 ‐1,2,4‐triazol‐3‐yl)nitramide 6 ‐(5‐(5‐(nitramino)‐1,2,4‐oxadiazol‐3‐yl)‐3 7 were also obtained, two series of corresponding salts prepared, leading the creation compounds. All derivatives fully characterized, five them further confirmed by X‐ray diffraction. The theoretical calculations, performance, safety, main decomposition gaseous products 1,2,4‐triazole‐1,2,4‐oxadiazole‐derived materials studied. Compound dihydroxylammonium salt c exhibited prominent detonation comparable that RDX while possessing satisfying thermal stabilities mechanical sensitivities.

Language: Английский

Citations

23
Application and Prospects of EMOFs in the Fields of Explosives and Propellants DOI
Bojun Tan, Jinkang Dou, Xiong Yang

et al.

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(32), P. 13308 - 13319

Published: Jan. 1, 2024

Energetic Metal-Organic Framework (EMOF) compounds have gained significant attention in recent years as a hot research topic the fields of explosives and propellants. This article provides an overview latest progress EMOFs various areas, including heat-resistant explosives, burning rate catalysts initiating explosives. It discusses development trends high-energy EMOFs, such high-dimensional solvent-free structural design, simplified scalable synthesis conditions, environmentally friendly manufacturing processes with tunable structures, high-energy, low-sensitivity multifunctional target products. The challenges issues faced by are presented. Furthermore, key directions for future applications propellants discussed, design synthesis, precise modulation molecular composition pore structure, improvement accurate prediction methods physicochemical properties low-cost large-scale production composite energetic materials, exploration influencing factors, comprehensive study on application novel high-performance EMOFs.

Language: Английский

Citations

3
Evolving the Scope of 5,5’‐Azobistetrazoles in the Search for High Performing Green Energetic Materials DOI Creative Commons
Maximilian Benz, Michael S. Gruhne,

Thomas M. Klapötke

et al.

European Journal of Organic Chemistry, Journal Year: 2021, Volume and Issue: 2021(30), P. 4388 - 4392

Published: July 27, 2021

Abstract The azotetrazole moiety represents a great platform for energetic materials, it offers planar and nitrogen‐rich backbone, combined with high heat of formation, which easily can be functionalized tuned. Herein, we start from sodium 5‐aminotetrazolate obtain two isomers by substitution reaction 2‐chloroethanol. Azidoethyl nitratoethyl substituted azo‐ tetrazoles were finally synthesized oxidative azo coupling the respective N ‐ethyl 5‐aminotetrazole precursors using tert ‐butyl hypochlorite as reagent. All compounds analyzed through multicore NMR IR spectroscopy well mass spectrometry. solid further investigated low‐temperature X‐ray crystallography. purity was verified CHNO elemental analysis decomposition temperature (DTA) sensitivities toward impact, friction electrostatic discharged determined. Based on CBS‐4M calculation results, properties calculated EXPLO5 code.

Language: Английский

Citations

11
2-(1,2,4-triazole-5-yl)-1,3,4-oxadiazole as a novel building block for energetic materials DOI Creative Commons

Zheting Dong,

Zhengqiang Wu,

Qiang Zhang

et al.

Frontiers in Chemistry, Journal Year: 2022, Volume and Issue: 10

Published: Aug. 26, 2022

The exploration of novel nitrogen-rich heterocyclic building blocks is importance in the field energetic materials. A series 2-(1,2,4-triazole-5-yl)-1,3,4-oxadiazole derivatives based on a new skeleton have been first synthesized by simple synthetic strategy. All three compounds are well-characterized IR spectroscopy, NMR spectroscopy and thermal analysis. 5 8 further characterized single-crystal X-ray diffraction its salts (8a-8c) possess relative high decomposition temperature low sensitivity, while exhibits sensitivity. According to EXPLO5 calculation results detonation performance, both display acceptable velocities (D) 8450 m/s 8130 pressures (P) 31.6 GPa 29.2 GPa, respectively. Furthermore, containing rare diazonium ylide structure shows impact sensitivity (4.5 J), making it has potential as primary explosive.

Language: Английский

Citations

7
What Shall We Do with the Computed Detonation Performance? Comment on “1,3,4‐Oxadiazole Bridges: A Strategy to Improve Energetics at the Molecular Level” DOI
Nikita V. Muravyev

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(21), P. 11568 - 11570

Published: April 16, 2021

Abstract In this Correspondence, a question is raised on how confident are the computed detonation performance values. Consideration of energetic materials in recent Research Article journal and some other newly synthesized promising compounds shows that variation between available methods calculation surprisingly high.

Language: Английский

Citations

9
Further study on energetic salts of TNATT anion DOI

Ximei Yang,

Chengming Bian,

Hongzhen Duan

et al.

Polyhedron, Journal Year: 2022, Volume and Issue: 217, P. 115733 - 115733

Published: Feb. 18, 2022

Language: Английский

Citations

4
Synthesis and detonation characters of 3,4,5-1H-trinitropyrazole and its nitrogen-rich energetic salts DOI
Chenchen Lin,

Pingping Yi,

Xiao‐Yi Yi

et al.

Dalton Transactions, Journal Year: 2023, Volume and Issue: 53(4), P. 1430 - 1433

Published: Dec. 27, 2023

The development of energetic materials is still facing challenges due to the inherent contradiction between energy and sensitivity. Two new nitrogen-rich salts 3,4,5-1

Language: Английский

Citations

2