Metal Effects on the Sensitivity of Isostructural Metal-Organic Frameworks Based on 5-Amino-3-nitro-1H-1,2,4-triazole

Saona Seth; Kyle A McDonald; Adam J Matzger

doi:10.1021/acs.inorgchem.7b01865

Metal Effects on the Sensitivity of Isostructural Metal-Organic Frameworks Based on 5-Amino-3-nitro-1H-1,2,4-triazole

Inorg Chem. 2017 Sep 5;56(17):10151-10154. doi: 10.1021/acs.inorgchem.7b01865. Epub 2017 Aug 24.

Authors

Saona Seth¹, Kyle A McDonald¹, Adam J Matzger^{1

2}

Affiliations

¹ Department of Chemistry, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109, United States.
² Department of Macromolecular Science and Engineering, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109, United States.

PMID: 28836784
DOI: 10.1021/acs.inorgchem.7b01865

Abstract

Two energetic metal-organic frameworks (MOFs), Co-ANTA and Zn-ANTA, are synthesized from 5-amino-3-nitro-1H-1,2,4-triazole (ANTA) and exhibit superior oxygen balance, density, and thermal stability compared to ANTA. The superior oxygen balance is achieved through a combination of hydroxide ligands and deprotonated linkers. Although the materials are isostructural and have similar density, oxygen balance, and sensitivity to heat, their impact sensitivities are significantly different. Similar to ANTA, Zn-ANTA is fairly insensitive to impact. By contrast, the impact sensitivity of ANTA is increased significantly after coordination polymerization with cobalt. The disparate impact sensitivities of the compounds might be attributed to the different electronic configurations of the metal ions constituting the frameworks.