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

Sujee Cho; Yeongjin Kim; Soochan Lee; Hyeonsoo Cho; Jonghoon Park; Doo Hwan Hong; Kuktae Kwon; Hae Wook Yoo; Wonyoung Choe; Hoi Ri Moon

doi:10.1002/ejic.202100757

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

Sujee Cho, Yeongjin Kim, Soochan Lee, Hyeonsoo Cho, Jonghoon Park, Doo Hwan Hong, Kuktae Kwon, Hae Wook Yoo, Wonyoung Choe, Hoi Ri Moon

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

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.

Original language	English
Article number	e202100757
Journal	European Journal of Inorganic Chemistry
Volume	2022
Issue number	1
DOIs	https://doi.org/10.1002/ejic.202100757
State	Published - 11 Jan 2022

Bibliographical note

Funding Information:
This work was supported by the Agency for Defense Development & Defense Acquisition Program Administration of Korea under project number 111155‐911127202 and the National Research Foundation (NRF) Grant funded by the Korean Government (2016R1A5A1009405).

Publisher Copyright:
© 2021 Wiley-VCH GmbH

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title = "Tetrazole-Based Energetic Metal-Organic Frameworks: Impacts of Metals and Ligands on Explosive Properties",

abstract = "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.",

author = "Sujee Cho and Yeongjin Kim and Soochan Lee and Hyeonsoo Cho and Jonghoon Park and {Hwan Hong}, Doo and Kuktae Kwon and Yoo, {Hae Wook} and Wonyoung Choe and {Ri Moon}, Hoi",

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AU - Kim, Yeongjin

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AU - Cho, Hyeonsoo

AU - Park, Jonghoon

AU - Hwan Hong, Doo

AU - Kwon, Kuktae

AU - Yoo, Hae Wook

AU - Choe, Wonyoung

AU - Ri Moon, Hoi

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Y1 - 2022/1/11

N2 - 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.

AB - 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.

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

Abstract

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