Review of the decomposition and energy release mechanisms of novel energetic materials

Chemical Engineering Journal, Год журнала: 2024, Номер 483, С. 149202 - 149202

Опубликована: Янв. 29, 2024

Язык: Английский

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Energetic coordination compounds: self-assembled from the nitrogen-rich energetic C–C bonded pyrazoles and triazoles

Dalton Transactions, Год журнала: 2023, Номер 52(35), С. 12271 - 12281

Опубликована: Янв. 1, 2023

In energetic materials research, coordination compounds (ECCs) have received much attention due to their high thermal stability and insensitivity mechanical stimuli. The characteristics of ECCs can be modified by combining various metal cations, potent anions, ligands. this study, we synthesized two ligands, 5-(4-nitro-1H-pyrazol-3-yl)-1H-1,2,4-triazol-3-amine (NPTA) (Z)-N-(5-(4-nitro-1H-pyrazol-3-yl)-2,4-dihydro-3H-1,2,4-triazol-3-ylidene)nitramide (NPTN), from a commercially viable starting material reacted them with nitrate salts 3d metals (e.g., Ni, Co, Zn) obtain six new ECCs, [Ni(NPTA)(H2O)3]2·2NO3 (1), [Co(NPTA)(H2O)3]2·2NO3 (2), [Zn(NPTA)(H2O)3]2·2NO3 (3), [Ni(NPTN)(H2O)3]2 (4), [Co(NPTN)(H2O)3]2 (5), [Zn(NPTN)(H2O)3]2 (6) under ambient conditions. All the newly prepared were characterised through PXRD, IR, SEM, TGA-DSC analysis. Furthermore, single crystal analysis proved that 1-6 are dimeric complexes. Moreover, show excellent density ranges 1.94 2.06 g cm-3 remarkable (216-352 °C), highly insensitive towards impact (>40 J) friction (>360 N), describing potential as performing materials. revealed good enthalpy combustion (-6.3 -9.94 kJ g-1). Additionally, Hirshfeld surface 2D fingerprint used understand close contact atoms within molecules. High densities, stabilities low sensitivities make interesting for further studies applications safe high-energy dense

Язык: Английский

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Combining the advantages of 1,3,4-oxadiazole and tetrazole enables achieving high-energy insensitive materials

Dalton Transactions, Год журнала: 2023, Номер 52(35), С. 12404 - 12409

Опубликована: Янв. 1, 2023

Combining the advantages of energetic heterocycles to achieve high-energy insensitive explosives is a significant challenge. Herein, based on tetrazole rings and highly stable 1,3,4-oxadiazole rings, series novel nitrogen rich compounds 5-9 were successfully constructed. The related fully characterized by EA, FT-IR, NMR, DSC, MS, 6-9 further confirmed X-ray single crystal diffraction. Among them, ion salts 6-8 show high thermal stability (Tdec > 250 °C) low mechanical sensitivity (IS 40 J, FS 360 N), as well good energy properties (7552-8050 m s-1, 19.4-23.3 GPa). In particular, azo compound 9 exhibits competent comprehensive performances = 226.2 °C, D 8502 P 28.9 GPa, IS 32 320 N). These results suggest that strategy integrating employing an structure bridging unit are effective approaches construct materials.

Язык: Английский

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Increasing the Energy Limit of Single Triazole–Tetrazole: HNANTT Modified with Its Energetic Coordination Polymers, Co-Crystals, and Energetic Salts

Crystal Growth & Design, Год журнала: 2023, Номер 23(9), С. 6756 - 6764

Опубликована: Июль 27, 2023

A series of novel energetic materials (EMs) based on a single triazole–tetrazole material, (Z)-N-(5-nitro-2-(1H-tetrazol-5-yl)-2,4-dihydro-3H-1,2,4-triazol-3-ylidene)nitramide (HNANTT) with tremendous physicochemical (d = 1.833 g cm–3 and ΔHf 715.8 kJ mol–1) properties (Dv 9209 m s–1 P 36.38 GPa), were obtained. Detailed crystal structures HNANTT NANTT-5, 7, 8, 9, 11, 13 determined by single-crystal X-ray diffraction. Based HNANTT, three kinds coordination polymers (ECPs) (NANTT-5, 8), four salts (NANTT-9, 10, 12), one cocrystal (NANTT-13) prepared characterized to develop EMs different advantages. By modifying all NANTT derivatives (except NANTT-10) showed good mechanical sensitivity (IS > 40 J, FS 360 N), NANTT-ECP-8 achieving the highest density (2.729 cm–3) thermal stability (287 °C), NANTT-12 has detonation performances 9225 30.87 GPa) among materials, while co-crystal exhibited best comprehensive performance, superior 9035 30.12 higher (236 N + O content 83.2%.

Язык: Английский

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Elevating the energetic capabilities of metal coordination compound by incorporating nitrate anions

Dalton Transactions, Год журнала: 2024, Номер 53(24), С. 10093 - 10098

Опубликована: Янв. 1, 2024

In the realm of energetic materials research, there has been notable interest in coordination compounds (ECCs) owing to their remarkable thermal stability and resistance mechanical stimuli.

Язык: Английский

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Lithium Ion Promoted the Formation of a Heat-Resistant Energetic Metal Salt with Dinitromethyl Functional Groups

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

Опубликована: Ноя. 25, 2024

Язык: Английский

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