Preparation of novel heat-resistant and insensitive fused ring energetic materials

Journal of Materials Chemistry A, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Compared with traditional polycyclic-based heterocyclic energetic compounds, the synthesis of fused ring compounds is more challenging since only a few substrates meet structural requirements for cyclization reaction.

Язык: Английский

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N-Acetonitrile functionalized 3-nitrotriazole: Precursor to nitrogen rich stable and insensitive energetic materials

Energetic Materials Frontiers, Год журнала: 2024, Номер 5(1), С. 8 - 16

Опубликована: Фев. 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.

Язык: Английский

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

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(36), С. 24188 - 24194

Опубликована: Янв. 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.

Язык: Английский

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A multi-fused heat-resistant energetic compound constructed by hydrogen bonds

Chemical Communications, Год журнала: 2023, Номер 59(65), С. 9864 - 9867

Опубликована: Янв. 1, 2023

The design of heat-resistant energetic compounds generally employs symmetry, planarity, and multi-hydrogen bonds to obtain with high density, good thermal stability, low sensitivity. In this paper, a hydrazine-bridged compound, 6,6'-(hydrazine-1,2-diyl)bis(5-nitropyrimidine-2,4-diamine) (PHP), was designed synthesized the strategy multi-fused conjugated structure constructed by hydrogen bonds. compound featured strong conjugation stability (364 °C). This provides basis for compounds.

Язык: Английский

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Novel Mannich bases derived from 1,2,4-triazoles: Design, synthesis, characterization, and glutathione S-transferase inhibition properties investigations

Journal of Molecular Structure, Год журнала: 2023, Номер 1293, С. 136321 - 136321

Опубликована: Июль 30, 2023

Язык: Английский

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N-Methylene-C-Linked Nitropyrazoles and 1,2,4-Triazolone-3-one: Thermally Stable Energetic Materials with Reduced Sensitivity

Dalton Transactions, Год журнала: 2024, Номер 53(42), С. 17179 - 17189

Опубликована: Янв. 1, 2024

A family of new asymmetric N -methylene-C linked nitropyrazoles and 1,2,4-triazol-3-one based thermally stable energetic materials with reduced sensitivity has been synthesized. Background image via Canva.

Язык: Английский

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Hydrogen-bonded self-assembly of purine with picric acid: Super heat-resistant and insensitive explosives

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159133 - 159133

Опубликована: Янв. 1, 2025

Язык: Английский

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Integration of 1,2,3-Triazine N-Oxide and 2,4,6-Trinitroaniline Moieties for the Design of Heat-Resistant Energetic Compounds

Organic Letters, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Heat-resistant energetic compounds are of great importance in the field material chemistry. Here, we report a practical synthesis series fused-ring via combination 1,2,3-triazine N-oxide and 2,4,6-trinitroaniline moieties. Starting from known compound 4,6-diamino-2-chloropyrimidine-5-carbonitrile (1), nucleophilic substitution followed by one-step nitration introduced three nitro groups onto benzene ring moiety, simultaneously. The resulting 4-7 exhibited high decomposition temperature (Td > 250 °C) as well relatively good detonation properties low sensitivities.

Язык: Английский

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Nitro-Pyrazole Substituted Fused [1,2,4] -Triazole Planar Skeleton: A Potential Nitrogen-Rich and Thermostable Energetic Material

Journal of Molecular Structure, Год журнала: 2025, Номер unknown, С. 142027 - 142027

Опубликована: Март 1, 2025

Язык: Английский

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

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

Опубликована: Март 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.

Язык: Английский

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