Issue 20, 2012

A new series of isoreticular copper-based metal–organic frameworks containing non-linear linkers with different group 14 central atoms

Abstract

The synthesis and characterization of two new metal–organic frameworks (MOFs) UHM-2 and UHM-4, which are isoreticular to PCN-12 and UHM-3 (see Inorg. Chem., 2009, 48, 6559), are presented. Both materials comprise dicopper paddle-wheel units and the new tetracarboxylic acid linkers 5,5′-(propane-2,2-diyl)diisophthalic acid and 5,5′-(dimethylgermanediyl) diisophthalic acid, respectively. In addition, isoreticular mixed-linker MOFs were synthesized with the silicon- and germanium containing linkers. UHM-2 to -4 constitute a homologous series allowing a systematic study on how the incorporation of atoms with higher polarizability in linkers may enhance the overall hydrogen uptake of MOFs. The experimental work is complemented by dispersion-corrected DFT calculations on C2v conformers of model systems representing the linkers of these MOFs.

Graphical abstract: A new series of isoreticular copper-based metal–organic frameworks containing non-linear linkers with different group 14 central atoms

Supplementary files

Article information

Article type
Paper
Submitted
28 Oct 2011
Accepted
27 Jan 2012
First published
09 Mar 2012

J. Mater. Chem., 2012,22, 10294-10302

A new series of isoreticular copper-based metal–organic frameworks containing non-linear linkers with different group 14 central atoms

S. E. Wenzel, M. Fischer, F. Hoffmann and M. Fröba, J. Mater. Chem., 2012, 22, 10294 DOI: 10.1039/C2JM15523K

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