Issue 19, 2014

A copper based pillared-bilayer metal organic framework: its synthesis, sorption properties and catalytic performance

Abstract

A new 2D pillared-bilayer flexible open metal organic framework {[Cu(tdc)(bpe)]n·2n(H2O)·n(MeOH)} (compound 1) [H2tdc = 2,5 thiophenedicarboxylic acid; bpe = 1,2-bis(4-pyridyl)ethane] has been synthesized through a solvent diffusion technique and structurally characterized. The structure analysis reveals that the tdc ligands formed bilayers with the Cu(II) ions along the b-direction and the layers are further pillared by bpe linkers and resulted in a 2D pillared-bilayer porous framework with a four connected uninodal sq1/Shubnikob tetragonal plane net with the Schälfli symbol {44·62}. The framework is enclosed with large square shaped channels (13.7 × 8.35 Å2) along the bc-plane and the channels are occupied by guest solvent molecules. The adsorption studies reveal that compound 1 shows selective adsorption for CO2 over CH4 at room temperature and it also shows hysteretic sorption for a few protic solvents (H2O and EtOH) and a Type-1 isotherm for an aprotic solvent (CH3CN). The catalytic performance of compound 1 for Glaser type homo-coupling reactions has also been reported.

Graphical abstract: A copper based pillared-bilayer metal organic framework: its synthesis, sorption properties and catalytic performance

Supplementary files

Article information

Article type
Paper
Submitted
22 Jan 2014
Accepted
14 Feb 2014
First published
14 Feb 2014

Dalton Trans., 2014,43, 7191-7199

Author version available

A copper based pillared-bilayer metal organic framework: its synthesis, sorption properties and catalytic performance

S. Parshamoni, S. Sanda, H. S. Jena and S. Konar, Dalton Trans., 2014, 43, 7191 DOI: 10.1039/C4DT00228H

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