Approaching the Thermostability Limit of Nitrogen-Rich Heterocyclic Perchlorate-Based Energetic Materials

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(37), С. 49434 - 49441

Опубликована: Сен. 4, 2024

In recent years, driven by ever-increasing application of energetic materials in deep-seated mineral resource exploitation and aerospace engineering, the mining advanced safe with significant thermal stability has drawn widespread publicity. Here, a tricyclic bridged compound 2-amino-4,6-bis(3,5-diamino-4-nitropyrazol-1-yl)-1,3,5-triazine (

Язык: Английский

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Study on Primary Explosive: Cu(ClO₄)₂-Based Energetic Coordination Compounds as a Template

Crystal Growth & Design, Год журнала: 2023, Номер 23(8), С. 5528 - 5534

Опубликована: Июнь 27, 2023

In order to study the design and preparation of new coordination primary explosive, influence ligand on performance was explored. Using low-energy, low-nitrogen pyrrole as skeleton hydrazide group target, 1H-pyrrole-2-carbohydrazide (PRCA) designed, two ECCs [Cu(PRCA)2(H2O)(ClO4)]ClO4·C2H5OH (ECCs-1·C2H5OH) [Cu(PRCA)2(H2O)(ClO4)]ClO4·2H2O (ECCs-1·2H2O) were prepared, [Cu(PRCA)2(H2O)(ClO4)]ClO4 (ECCs-1) obtained by a simple drying method. The structure target compound confirmed single-crystal X-ray diffraction, infrared (IR), elemental analysis (EA) characterization. Physicochemical tests show that ECCs-1 has better thermal stability (Td = 219 °C) is more sensitive impact sensitivity (IS 7 J) friction (FS 16 N). detonation prediction results velocity pressure are not high (DEXPLO 5 6.2 km s–1, PEXPLO 16.2 GPa). However, an extremely strong ability.

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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Keeping the Same Ratio of the Ligand and Perchlorate: Realizing the High Performance of Energetic Materials by Changing the Bonding Mode

The Journal of Physical Chemistry C, Год журнала: 2023, Номер 127(27), С. 12923 - 12930

Опубликована: Июнь 27, 2023

In addition to the three classical methods for adjusting performance of energetic complexes, in order explore influence different bonding types on materials, we designed ionic salts PZCA·HClO4 (3) and ECPs [Ag(PZCA)ClO4]n (4) with PZCA(1H-pyrazole-4-carbohydrazide) as ligand. They use same ligands oxidizing acids also have N/O number. On basis their structures compositions confirmed by infrared spectroscopy, elemental analysis, single-crystal X-ray diffraction, characterization physical chemical properties shows that 4 has better thermal decomposition behavior (ΔT = 30 °C), more suitable mechanical sensitivity (IS 5 J, FS 9 N), outstanding initiation performance. After studying mechanism, find bonds (H bond or coordination covalent bond) lead mechanisms (redox reaction free radical reaction) and, finally, show great differences explosive properties.

Язык: Английский

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Synthesizing new Bi-structure energetic coordination compounds using ternary components

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 11(2), С. 624 - 631

Опубликована: Дек. 11, 2023

[Ag(1-APZ-5-HCA)(ClO 4 ) 2 ] n (ECPs-1) has a dual structure of ionic salt and coordination compounds. It also the advantages high ClO − content oxygen balance, acceptable mechanical stimulation excellent explosion performance.

Язык: Английский

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Optimization of performance and sensitivity: preparation of two Ag(i)-based ECPs by using isomeric ligands

Dalton Transactions, Год журнала: 2023, Номер 52(38), С. 13716 - 13723

Опубликована: Янв. 1, 2023

For energetic compounds, their structure determines performance, and even minor variations in can have a significant impact on performance. The application scenarios for materials are diverse, performance requirements vary as well. To investigate the influence of different substituent positions primary explosives, we prepared two Ag(I)-based complexes, [Ag(2-IZCA)ClO4]n (ECPs-1) [Ag(4-IZCA)ClO4]n (ECPs-2), using structurally isomeric ligands, 1H-imidazole-2-carbohydrazide (2-IZCA) 1H-imidazole-4-carbohydrazide (4-IZCA). structures were confirmed infrared, elemental analysis, single-crystal X-ray diffraction. Experimental results demonstrate that both ECPs exhibit good thermal stability. However, compared to ECPs-1, ECPs-2 exhibits lower initial decomposition temperature (Td = 210 °C), mechanical sensitivity (IS 27 J, FS 84 N), more concentrated energy output. Although theoretical predictions suggest similar detonation velocities pressures actual tests indicate has stronger explosive power initiating capability, with potential use laser initiator (E 126 mJ). simple preparation method inexpensive starting enrich research explosives.

Язык: Английский

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Assembly of thermostable fused compounds with oxidizers for laser-ignited energetic materials

CrystEngComm, Год журнала: 2024, Номер 26(12), С. 1738 - 1746

Опубликована: Янв. 1, 2024

Two new energetic materials that can be ignited by laser were synthesized coulomb-driven self-assembly, which showed good stability, as well excellent and propulsion performances.

Язык: Английский

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Constructing a graphene-like structure to lower friction sensitivity: Ag(i) complexes based on furan-2,5-dicarbohydrazide

New Journal of Chemistry, Год журнала: 2023, Номер 47(37), С. 17592 - 17598

Опубликована: Янв. 1, 2023

Using furan-2,5-dicarbohydrazide (FDCA) as a ligand, we prepared [Ag(FDCA)(ClO4)]n (ECP-1) with graphene-like structure, which successfully shows low friction sensitivity (FS = 84 N), in sharp contrast its high impact (IS 4 J).

Язык: Английский

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Strategy for Balance Energy and Safety: Salt Formation of Nitrogen-Rich Bicyclic Compounds Based on 1,2,4-Triazole

Crystal Growth & Design, Год журнала: 2024, Номер unknown

Опубликована: Дек. 12, 2024

Язык: Английский

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Mechanistic investigation on the gas-phase thermal decomposition of triazene-bridged nitro-1,2,4-triazole

Theoretical Chemistry Accounts, Год журнала: 2024, Номер 143(6)

Опубликована: Май 18, 2024

Язык: Английский

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