Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/82091
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Type: | Journal article |
Title: | Utilising hinged ligands in MOF synthesis: a covalent linking strategy for forming 3D MOFs |
Author: | Coghlan, C. Sumby, C. Doonan, C. |
Citation: | CrystEngComm, 2014; 16(28):6364-6371 |
Publisher: | Royal Society of Chemistry |
Issue Date: | 2014 |
ISSN: | 1466-8033 1466-8033 |
Statement of Responsibility: | Campbell J. Coghlan, Christopher J. Sumby and Christian J. Doonan |
Abstract: | Here we show that connecting two equivalents of a bis-pyrazolymethane ‘hinged’ link by a carbon–carbon bond characteristically ‘extends’ the 2D layered metal–organic frameworks (MOFs) typically formed with such compounds into 3D MOF materials. 1,1,2,2-Tetrakis[4-(4-carboxyphenyl)-1H-pyrazol-1-yl]ethane (L) was prepared in three steps and upon reaction with late transition metals, namely copper(II), cadmium(II) and zinc(II), gave 3D MOFs [Cu2(L)(H2O)2] 1.4DMF and [M2L]·xDMF (M = Zn, x = 1; M = Cd, x = 1.75). The 3D MOFs display gating behaviour in their adsorption isotherms, consistent with 3rd generation flexible structures. Furthermore, the 3D MOFs showed appreciable affinity for CO2 at 293 K however, due to the larger pore sizes, molecular sieving of CO2/N2 was not observed. Reaction of L with cobalt(II) gave a 3D hydrogen-bonded network incorporating 1D coordination polymer chains that is topologically equivalent to the Zn and Cd MOFs. The strategy outlined here demonstrates a novel route for designing more chemically and thermally robust 3D MOFs from 2D layered materials. |
Description: | First published online 04 Mar 2014 |
Rights: | This journal is © The Royal Society of Chemistry 2014 |
DOI: | 10.1039/C4CE00181H |
Grant ID: | http://purl.org/au-research/grants/arc/FT100100400 http://purl.org/au-research/grants/arc/FT0991910 |
Published version: | http://dx.doi.org/10.1039/c4ce00181h |
Appears in Collections: | Aurora harvest Chemistry and Physics publications |
Files in This Item:
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hdl_82091.pdf | Accepted version | 2.47 MB | Adobe PDF | View/Open |
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