Continuous Breathing Rare-Earth MOFs Based on Hexanuclear Clusters with Gas Trapping Properties
Giasemi K. Angeli, Edward Loukopoulos, Konstantinos Kouvidis, Artemis Bosveli, Constantinos Tsangarakis, Emmanuel Tylianakis, George E. Froudakis, Pantelis N. Trikalitis
Abstract
) sorption studies, supported by accurate theoretical calculations, shed light onto the unique swelling behavior. The results reveal a synergistic action involving steric effects, associated with coordinated solvent molecules and 2-fluorobenzoate (2-FBA) nonbridging ligands, as well as cation-framework electrostatic interactions. We were able to probe the individual role of the coordinated solvent molecules and 2-FBA ligands and found that both cooperatively control the gas-breathing and -trapping properties, while 2-FBA controls the vapor adsorption selectivity. These findings provide unique opportunities toward the design and development of tunable RE-based flexible MOFs with tailor-made properties.