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Issue 36, 2018
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Modulation of pore shape and adsorption selectivity by ligand functionalization in a series of “rob”-like flexible metal–organic frameworks

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Abstract

We report the synthesis of a new family of four new isoreticular metal–organic frameworks (MOFs) based on Cu–Cu paddle-wheel building units. The four MOFs contain 1D microchannels modulated by chemical functionalisation of a dicarboxylate ligand or the use of different bis-4,4′-pyridyl-like connectors behaving as ancillary linkers. A deep analysis of their CO2, H2 and CH4 adsorption properties, combining both experimental and grand canonical Monte Carlo isotherms as well as in situ synchrotron X-ray diffraction, shows variable adsorption behaviour towards the studied gases, with some materials acting as molecular sieves with virtually infinite selectivity.

Graphical abstract: Modulation of pore shape and adsorption selectivity by ligand functionalization in a series of “rob”-like flexible metal–organic frameworks

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Article information


Submitted
09 May 2018
Accepted
07 Aug 2018
First published
08 Aug 2018

J. Mater. Chem. A, 2018,6, 17409-17416
Article type
Paper

Modulation of pore shape and adsorption selectivity by ligand functionalization in a series of “rob”-like flexible metal–organic frameworks

J. Cepeda, M. Pérez-Mendoza, A. J. Calahorro, N. Casati, J. M. Seco, M. Aragones-Anglada, P. Z. Moghadam, D. Fairen-Jimenez and A. Rodríguez-Diéguez, J. Mater. Chem. A, 2018, 6, 17409
DOI: 10.1039/C8TA04316G

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