Title: p-Xylene-Selective Metal-Organic Frameworks: A Case of Topology-Directed Selectivity
Authors: Vermoortele, Frederik ×
Maes, Michaël
Moghadam, Peyman Z
Lennox, Matthew J
Ragon, Florence
Boulhout, Mohammed
Biswas, Shyam
Laurier, Katrien
Beurroies, Isabelle
Denoyel, Renaud
Roeffaers, Maarten
Stock, Norbert
Dueren, Tina
Serre, Christian
De Vos, Dirk #
Issue Date: Nov-2011
Publisher: American Chemical Society
Series Title: Journal of the American Chemical Society vol:133 issue:46 pages:18526-18529
Abstract: Para-disubstituted alkylaromatics such as p-xylene are preferentially adsorbed from an isomer mixture on three isostructural metal organic frameworks: MIL-125(Ti) (T[i(8)O(8)(OH)(4)(BDC)(6) ]), MIL-125(Ti)-NH2 ([Ti8O8(OH)(4)(BDC-NH2)(6)])) and CAU-1(Al)-NH2 ([Al-8(OH)(4)(OCH3)(8)(BDC-NH2)(6)]) (BDC = 1,4-benzenedicarboxylate). Their unique structure contains octahedral cages, which can separate molecules on the basis of differences in packing and interaction with the pore walls, as well as smaller tetrahedral cages, which are capable of separating molecules by molecular sieving. These experimental data are in line with predictions by molecular simulations. Additional adsorption and microcalorimetric experiments provide insight in the complementary role of the two cage types in providing the para selectivity.
ISSN: 0002-7863
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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