Tetrazole‐Based Energetic Metal‐Organic Frameworks: Impacts of Metals and Ligands on Explosive Properties

New energetic materials are required to compensate for the shortcomings of the current ones. Especially secondary explosives are the ones with low‐sensitivity, while maintaining energetic performance similar to those of primary ones, and particularly useful when safety must be ensured. Herein, we re...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2022-01, Vol.2022 (1), p.n/a
Main Authors: Cho, Sujee, Kim, Yeongjin, Lee, Soochan, Cho, Hyeonsoo, Park, Jonghoon, Hwan Hong, Doo, Kwon, Kuktae, Yoo, Hae‐Wook, Choe, Wonyoung, Ri Moon, Hoi
Format: Article
Language:English
Subjects:
Crystal density
Detonation
Energetic material
Energetic materials
Inorganic chemistry
Ligands
Metal-Organic Framework (MOF)
Metal-organic frameworks
Secondary explosive
Sensitivity
Tetrazole ligand
Tetrazoles
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Summary:New energetic materials are required to compensate for the shortcomings of the current ones. Especially secondary explosives are the ones with low‐sensitivity, while maintaining energetic performance similar to those of primary ones, and particularly useful when safety must be ensured. Herein, we report two energetic metal‐organic frameworks (eMOFs), eMOF‐1, [Mn5(mtz)6.1(atz)2.9(NO3)] (mtz=5‐methyltetrazole, atz=5‐aminotetrazole) and eMOF‐2, [Cu(mtz)2], both of which have unique detonation and sensitivity properties. In particular, eMOF‐1, firstly reported here, shows better energetic performance when compared with the previously reported material, Cd‐based mtz MOF, an isostructural series. In addition, eMOF‐2 synthesized in water shows a great detonation performance, whereas isotopological Zn‐based mtz MOF did not show a meaningful performance as an explosive. Therefore, such reticular approach, i. e. replacing metal ions or ligands in isostructural frameworks, can be quite effective for the development of a new breed of energetic materials. We report two tetrazole‐based energetic metal‐organic frameworks, eMOF‐1 and ‐2, demonstrating exotic energetic properties, excellent insensitivity, and thermal stability. These eMOFs were compared to their isotopological counterparts, giving interesting insight.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.202100757