Guest-dependent bond flexibility in UiO-66, a “stable” MOF
Kevin Fabrizio, A. B. Andreeva, Kentaro Kadota, Amanda J. Morris, Carl K. Brozek
Abstract
We report "flexibility constants"-a conceptual analog to metal-ligand stability constants-of UiO-66, the prototypical "stable" MOF, across a wide temperature range in both vacuum and in the presence of typical guest solvents. With these data, we extract key thermodynamic parameters governing the reversible bond equilibrium and demonstrate that guest molecules strongly favor the reversible dissociation of MOF metal-linker bonds.
Topics & Concepts
Flexibility (engineering)ChemistryBondMaterials scienceCrystallographyBusinessMathematicsFinanceStatisticsMetal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research