A hybrid of tetrazolium and pentazolate: An energetic salt with ultrahigh nitrogen content and energy

As a full nitrogen energetic anion, pentazolate (cyclo-N5ˉ) holds great promise in the fields of propellants and explosives. Nowadays, nonmetallic pentazolate salts have received extensive attention as excellent nitrogen-rich energetic materials for their high enthalpies of formation, good oxygen ba...

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Veröffentlicht in:Energetic materials frontiers 2023-06, Vol.4 (2), p.63-67
Hauptverfasser: Yu, Ru-jing, Liu, Yu-ji, Huang, Wei, Tang, Yong-xing
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Sprache:eng
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Zusammenfassung:As a full nitrogen energetic anion, pentazolate (cyclo-N5ˉ) holds great promise in the fields of propellants and explosives. Nowadays, nonmetallic pentazolate salts have received extensive attention as excellent nitrogen-rich energetic materials for their high enthalpies of formation, good oxygen balance, and eco-friendly decomposition products. In this study, a 1,4,5-triaminotetrazolium-based pentazolate salt (TATe+N5ˉ, 8) with a nitrogen content of up to 90.30% was designed and synthesized. Its crystal structure indicates that a large number of hydrogen bonds form a hydrogen-bonded network, and the crystal has a mixed stacking pattern. TATe+N5ˉ, which has a relatively high density (1.64 ​g·cm−3), high heat of formation (861.9 ​kJ·mol−1), and excellent detonation performances (detonation velocity: 9487 ​m·s−1, detonation pressure: 32.5 ​GPa), provides new insights into the stability of ultrahigh-nitrogen compounds. A new non-metallic pentazolate salt was prepared based on 1,4,5-triaminotetrazolium bromide and AgN5. It has extremely high nitrogen content (90.30%) and detonation properties (9487 ​m ​s− 1 and 32.5 ​GPa). [Display omitted]
ISSN:2666-6472
2666-6472
DOI:10.1016/j.enmf.2022.05.002