Boosting Laser-Ignited Combustion Performance of Energetic Materials with Low Sensitivity: Integration of Triazene-Bridged Triazole with Oxygen-Rich Moieties via Noncovalent Self-Assembly

Crystal Growth & Design, Год журнала: 2022, Номер 23(1), С. 333 - 341

Опубликована: Дек. 22, 2022

It has long been a driving force in the development of energetic materials to hunt for novel high-energy density (HEDMs) with high energy and good stability. Recently, noncovalent self-assembly strategy anions cations generate HEDMs is an effective introducing oxidizer fuel separately into system. In this study, bis(1,2,4-triazolyl)triazene containing triazene (−N═N═NH−) oxidant molecules (i.e., HNO3 HClO4) were selected as ions develop new by using self-assembly. The experimental results showed that three exemplary compounds possess excellent detonation pressure velocity (PC–J: 22.8–29.3 GPa D: 7425–8135 m s–1), which are comparable classical explosive trinitrotoluene (TNT) 19.5 6881 s–1) well 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) 34.9 8795 s–1). Moreover, 1 3 exhibit low mechanical sensitivities (IS: 40 J IS: 70 J). Thus, have great potential insensitive materials. Especially, these assemblies laser-ignited combustion properties can be used candidates sensitivity propellants.

Язык: Английский

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1,2-Bis(5-(trinitromethyl)-1,2,4-oxadiazol-3-yl)diazene: a water stable, high-performing green oxidizer

Dalton Transactions, Год журнала: 2021, Номер 50(46), С. 16929 - 16932

Опубликована: Янв. 1, 2021

Trinitromethane moieties are very important for the design and development of high performing dense green oxidizers. The novel oxidizer 1,2-bis(5-(trinitromethyl)-1,2,4-oxadiazol-3-yl)diazene, 14 is stable in water contrast to 1,2,4-oxadiazoles with other electron withdrawing substituents at C5-position. Compound a CNO-based positive oxygen balance (+6.9%), moderate thermostability, mechanical insensitivity that may find useful applications field rocket propallant.

Язык: Английский

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Regulation of stability and detonation performance: preparation of coordination compounds by using isomeric ligands

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 10(16), С. 4773 - 4779

Опубликована: Янв. 1, 2023

By cutting off the reaction site and maintaining coordination model, Cu(4-IMCA) 2 (ClO 4 ) (ECC-1) was prepared. Compared to Cu(PZCA) , ECC-1 has reduced mechanical sensitivity, enhanced thermal stability, increased detonation performance.

Язык: Английский

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The integration of dinitropyrazole and 1,3,4-oxadiazole: A novel hybrid heterocyclic skeleton for balancing energy and stability

Defence Technology, Год журнала: 2022, Номер 24, С. 122 - 128

Опубликована: Март 7, 2022

In this study, a new energetic hybrid skeleton was constructed through the integration of nitropyrazole and 1,3,4-oxadiazole skeletons in molecule. Furthermore, precursor (2), azo-bridged compound (3), neutral nitramine (4) corresponding salts (5–7) were synthesized. Their physicochemical properties experimentally theoretically evaluated. Among developed compounds, (3) dihydroxylammoinium (6) display high detonation performances (3, Dv = 8904 m/s, P 34.47 GPa; 6, 9025 34.66 GPa), moderate sensitivities IS 16 J, FS 120 N; 20 312 N) good densities 1.87 g/cm3; 1.81 g/cm3), which indicates that they have potential to replace traditional high-energy explosive RDX. The results show different can achieve balance between energy sensitivity.

Язык: Английский

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Reliable prediction of crystal density of high nitrogen-containing organic compounds as powerful, less sensitive, eco-friendly energetic materials for dependable assessment of their performance

Fluid Phase Equilibria, Год журнала: 2022, Номер 565, С. 113653 - 113653

Опубликована: Окт. 26, 2022

Язык: Английский

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