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Periodic PBE-D3 and M06-L calculations predict the lowest-energy proton topology of a [Zr6(μ3-O)4(μ3-OH)4(μ2-OH)3]2 ZrIV-MOF (J. Am. Chem. Soc. 2017, 139, 7004-7011), which has a unique double-node structure, to be 73.4 and 64.2 kcal/mol more stable than that originally proposed. Mono- and bidefective Zr12 secondary building units derived from this topology and built by removing one and two bridging terphenyldicarboxylate linkers and saturating the remaining open ZrIV metal sites with hydroxyl and aqua groups, are predicted to exhibit higher reactivity for the hydrolysis of sarin nerve agent than other coordinatively unsaturated Zr6-based MOFs reported to date.
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This work was supported as part of the Nanoporous Materials Genome Center, funded by the U.S. DOE, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences (Award DE-FG02-17ER16362). The authors acknowledge the Minnesota Supercomputing Institute (MSI) for providing resources that contributed to the research results reported within this paper. M.R.M. is grateful for helpful discussions with Manuel Ortuño, Omar Farha, and Timur Islamoglu.