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Issue 7, 2015
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Versatile rare earth hexanuclear clusters for the design and synthesis of highly-connected ftw-MOFs

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Abstract

A 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, and are thus (4,12)-c ftw-MOFs. This targeted rare earth ftw-MOF platform offers the potential to assess the effect of pore functionality and size, via ligand functionalization and/or expansion, on the adsorption properties of relevant gases. Examination of the gas adsorption properties of these compounds showed that the ftw-MOF-2 analogues, constructed from rigid ligands with a phenyl, naphthyl, or 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 RE-based MOFs. Further studies revealed that the Y-ftw-MOF-2 shows promise as a storage medium 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).

Graphical abstract: Versatile rare earth hexanuclear clusters for the design and synthesis of highly-connected ftw-MOFs

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Publication details

The article was received on 17 Feb 2015, accepted on 15 Apr 2015 and first published on 15 Apr 2015


Article type: Edge Article
DOI: 10.1039/C5SC00614G
Citation: Chem. Sci., 2015,6, 4095-4102
  • Open access: Creative Commons BY license
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    Versatile rare earth hexanuclear clusters for the design and synthesis of highly-connected ftw-MOFs

    R. Luebke, Y. Belmabkhout, Ł. J. Weseliński, A. J. Cairns, M. Alkordi, G. Norton, Ł. Wojtas, K. Adil and M. Eddaoudi, Chem. Sci., 2015, 6, 4095
    DOI: 10.1039/C5SC00614G

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