Versatile Rare Earth Hexanuclear Clusters for the Design and Synthesis of Highly-connected ftw-MOFs
Alkordi, Mohamed Helmi
KAUST DepartmentFunctional Materials Design, Discovery and Development (FMD3)
Advanced Membranes and Porous Materials Research Center
Physical Sciences and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/550423
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AbstractA series of highly porous MOFs were deliberately targeted to contain a 12-connected rare earth hexanuclear cluster and quadrangular tetracarboxylate ligands. The resultant MOFs have an underlying topology of ftw, (4, 12)-c ftw-MOFs. This targeted RE ftw-MOF platform offers potential to assess the effect of pore functionality and size, via ligand functionalization and/or expansion, on adsorption properties of relevant gases. Examination of gas adsorption properties of these compounds showed that the ftw-MOF-2 analogues, constructed from rigid ligands having a phenyl, a naphthyl or an anthracene core, exhibited a relatively high degree of porosity. The specific surface areas and pore volumes of these analogs are amongst the highest reported for rare earth based MOFs. Further studies reveal that Y-ftw-MOF-2 shows promising attributes as a storage media for methane (CH4) at high pressures. Furthermore, Y-ftw-MOF-2 shows potential as a separation agent for the selective removal of normal butane (n-C4H10) and propane (C3H8) from natural gas (NG) as well as interesting properties for the selective separation of n-C4H10 from C3H8 or isobutane (iso-C4H10).
CitationVersatile Rare Earth Hexanuclear Clusters for the Design and Synthesis of Highly-connected ftw-MOFs 2015 Chem. Sci.
PublisherRoyal Society of Chemistry (RSC)