Multipurpose Energetic Materials by Shuffling Nitro Groups on a 3,3′‐Bipyrazole Moiety

Chemistry - A European Journal, Journal Year: 2018, Volume and Issue: 24(65), P. 17220 - 17224

Published: Sept. 19, 2018

A family of 3,3'-bipyrazole-based energetic compounds having C-NO2 /N-NO2 functionalities was synthesized by using various nitrating conditions. These nitro derivatives bipyrazole are significantly more dense and compared to the corresponding nitropyrazole analogues while maintaining desired thermal stability sensitivity. Depending on number nature groups (C-NO2 ), different classes materials, such as green primary explosives, high-performance secondary explosives heat-resistant were obtained. All thoroughly characterized IR, NMR [1 H, 13 C{1 H}, 15 N], elemental analysis, differential scanning calorimetry (DSC). Four also structurally with single-crystal X-ray diffraction studies. Heats formation detonation performance calculated Gaussian 03 EXPLO5 v6.01 programs, respectively.

Language: Английский

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Novel energetic metal–organic frameworks assembled from the energetic combination of furazan and tetrazole

Dalton Transactions, Journal Year: 2020, Volume and Issue: 49(19), P. 6295 - 6301

Published: Jan. 1, 2020

Two novel 2D energetic metal-organic frameworks (MOFs), namely, [Pb(BTF)(H2O)2]n (1) and [Ba(BTF)(H2O)4]n (2), that possess the combined advantages of tetrazole furazan rings were successfully synthesized. Their crystal structures determined by single-crystal X-ray diffraction fully characterized elemental analysis FT-IR spectroscopy. thermal stability sensitivity also investigated. The MOFs have good (Tdec > 250 °C) are insensitive to impact (IS 25 J) friction (FS 360 N), oxygen balance (Ω -20%). Crystal structure analyses reveal two compounds densities up 3.382 g cm-3 2.336 cm-3, respectively, excellent physicochemical properties. Tetrazole as ligands can commendably increase MOFs, thereby enhancing their detonation performance. We anticipate this work will open a new direction for development MOFs. Moreover, exhibits outstanding catalytic performance ammonium perchlorate (AP). When supramolecular complex was added in 10 wt% amount, high-temperature decomposition peak AP advanced 95 °C reaction rates enhanced lowering activation energy.

Language: Английский

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Synthesis, characterization, testing, and detonation performance studies of fused pyrazole-based fluorescent energetic materials

Materials Chemistry and Physics, Journal Year: 2023, Volume and Issue: 301, P. 127678 - 127678

Published: March 31, 2023

Language: Английский

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Combination of N‐amino‐1,2,4‐triazole and 4‐hydroxy‐3,5‐dinitropyrazole for the synthesis of high performing explosives

Journal of Heterocyclic Chemistry, Journal Year: 2024, Volume and Issue: 61(8), P. 1299 - 1305

Published: June 5, 2024

Abstract In an attempt to cultivate energy‐stability balance, a series of nitrogen and oxygen‐rich high energy density materials were synthesized based on N ‐substituted 4‐hydroxy‐3,5‐dinitropyrazole methylene‐linked ‐amino‐1,2,4‐bridges. The hydroxy substituent contributed oxygen content, hydrogen bonding, tunability via salt formation. On the other hand, triazole bridge delivered content thermal stability. All compounds characterized with multinuclear NMR, FTIR, HRMS, elemental analysis, their physicochemical energetic properties analyzed. Energetic 1 – 5 showed detonation performance adequate overall stabilities. Compound exhibited higher (1.84 g/cm 3 ) ( D v = 8103 m/s, P 26.9 GPa) in comparison its reported amino derivative.

Language: Английский

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3,4,5-Trinitro-1-(nitromethyl)-1H-pyrazole (TNNMP): a perchlorate free high energy density oxidizer with high thermal stability

Journal of Materials Chemistry A, Journal Year: 2017, Volume and Issue: 5(21), P. 10437 - 10441

Published: Jan. 1, 2017

A rare high energy density oxidizer with excellent thermal stability along good oxygen balance and energetic properties was synthesized fully characterized.

Language: Английский

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