1,3,4-Oxadiazole-Bridged 3,5-Dinitropyrazoles: Powerful Alliance toward High Performance and High Thermal Stability DOI
Krishna Pandey, Priyanka Das,

Amit Bijlwan

и другие.

The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

The ever-increasing demand for heat-resistant energetic materials in deep mining and space exploration has led to significant interest developing new with exceptional thermal stability detonation performance. In this work, a novel compound, 2,5-bis(3,5-dinitro-1H-pyrazol-4-yl)-1,3,4-oxadiazole (3), was achieved through simple straightforward method where two 3,5-dinitropyrazole moieties are linked 1,3,4-oxadiazole ring. Compound 3, symmetrical conjugated molecule, demonstrates superior (Tdec = 325 °C), good performance (Dv 8464 m s-1), improved physical (IS 7.5 J) compared the industrially used explosive, HNS. properties of 3 were further optimized by forming salts, 4 5. An attempted reaction synthesize zwitterionic compound 7, having 3,5-diamino-1,2,4-triazole ring connected via C-C bond, resulted another 6. Energetic salts 291 °C) 5 275 as well 6 286 demonstrated excellent decomposition temperatures stability. dihydroxylammonium salt (5) 8507 s-1, P 31.25 GPa) exhibited best properties, approaching RDX. remarkable overall compounds 3-5 makes them suitable candidates high-performance, explosives.

Язык: Английский

Promising Energetic Asymmetric Bistetrazoles Synthesized via Sequential Cycloaddition Reactions DOI
Jing Liu,

Yaqun Dong,

Miao Li

и другие.

The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Herein, we report the successful synthesis of a series asymmetric bistetrazole-based energetic compounds (4, 8, 4a-c, and 5a-c) starting from 2-(5-amino-4-nitro-1H-pyrazol-3-yl)-2H-5-cyanotetrazol (3), which was obtained via reaction 3,5-diamino-4-nitropyrazole hydrochloride with diazoacetonitrile using [3 + 2] cycloaddition strategy. All newly synthesized displayed superior detonation performances, particularly 2'-(5-amino-4-nitro-1H-pyrazol-4-yl)-2H,2'H-5,5'-bistetrazole (4), exhibited exceptional overall performances. These findings underscore potential bistetrazole derivatives as promising candidates for development advanced materials.

Язык: Английский

Процитировано

0
Efficient 3D Printing of RDX composites with high relative density via photocuring Energetic Polymers DOI
Jingxuan Zhang,

Yeming Huang,

Ren-Hong Wang

и другие.

Polymer, Год журнала: 2025, Номер unknown, С. 128301 - 128301

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Synthesis and Properties of Trinitromethyl‐1H‐1,2,4‐Triazole Bridging Nitropyrazole Energetic Salts DOI
Lihua Xie,

Pingping Yi,

Chenchen Lin

и другие.

ChemistrySelect, Год журнала: 2025, Номер 10(18)

Опубликована: Май 1, 2025

Abstract The polynitroazole plays an important role in the design of high‐energy density materials. A series nitrogen‐rich salts based on trinitromethyl‐substituted 1 H ‐1,2,4‐triazole bridging nitropyrazole was prepared. These newly synthesized were fully characterized by chemical analysis (infrared, NMR, and mass spectroscopy) as well experimental tests (thermostability sensitivities). Their detonation properties (detonation velocity, pressure, etc.) determined EXPLO5 program basis heat formation. show moderate thermostabilities low sensitivities (IS ≥ 10 J, FS 252 N) due to intermolecular hydrogen bonding interactions. most promising insensitive compound is salt 2, which possesses a high (1.80 g cm −3 ), relatively thermal stability (149 °C), sensitivity = 30 N), good velocity (8997 m s −1 ) pressure (36.7 GPa) comparable cyclotrimethylenetrinitramine (RDX). This study supports efficiency utilizing combined with systems development new high‐energy, energetic

Язык: Английский

Процитировано

0
Crystal Engineering Optimization through CF3 Functionalization: An Emerging Strategy for High-Density Energetic Materials DOI

Xiaoxiao Zheng,

Hui‐Liang Hua,

Xuhui Xu

и другие.

Crystal Growth & Design, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Язык: Английский

Процитировано

0
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

Процитировано

0
Unprecedented energetic zwitterion integrating thermal stability, high energy density and low sensitivity: Overcoming performance trade-offs in conventional energetic materials DOI Creative Commons
Bojun Tan, Xiong Yang, Jinkang Dou

и другие.

Defence Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
1,3,4-Oxadiazole-Bridged 3,5-Dinitropyrazoles: Powerful Alliance toward High Performance and High Thermal Stability DOI
Krishna Pandey, Priyanka Das,

Amit Bijlwan

и другие.

The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

The ever-increasing demand for heat-resistant energetic materials in deep mining and space exploration has led to significant interest developing new with exceptional thermal stability detonation performance. In this work, a novel compound, 2,5-bis(3,5-dinitro-1H-pyrazol-4-yl)-1,3,4-oxadiazole (3), was achieved through simple straightforward method where two 3,5-dinitropyrazole moieties are linked 1,3,4-oxadiazole ring. Compound 3, symmetrical conjugated molecule, demonstrates superior (Tdec = 325 °C), good performance (Dv 8464 m s-1), improved physical (IS 7.5 J) compared the industrially used explosive, HNS. properties of 3 were further optimized by forming salts, 4 5. An attempted reaction synthesize zwitterionic compound 7, having 3,5-diamino-1,2,4-triazole ring connected via C-C bond, resulted another 6. Energetic salts 291 °C) 5 275 as well 6 286 demonstrated excellent decomposition temperatures stability. dihydroxylammonium salt (5) 8507 s-1, P 31.25 GPa) exhibited best properties, approaching RDX. remarkable overall compounds 3-5 makes them suitable candidates high-performance, explosives.

Язык: Английский

Процитировано

0