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Issue 26, 2015
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Metal organic frameworks from extended, conjugated pentiptycene-based ligands

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Abstract

Two new conjugated, iptycene-containing, organic proligands were synthesized for incorporation into zinc-containing metal–organic frameworks (MOFs). A 2D pentiptycene-containing, square-paddlewheel MOF was first synthesized and characterized. By varying the reaction conditions slightly, the capping ligand could be changed, but the long-range order and packing of the 2D sheets was not altered. Addition of 4,4′-bipyridine allowed the deliberate synthesis of a 3D pillared MOF. The crystal structure of this material shows very large void spaces, but solvent-exchange and evacuation led to the collapse of the structure and a loss of crystallinity. This work demonstrates the potential to achieve high porosity by preparing MOFs from iptycene-containing ligands.

Graphical abstract: Metal organic frameworks from extended, conjugated pentiptycene-based ligands

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Supplementary files

Article information


Submitted
06 May 2015
Accepted
01 Jun 2015
First published
11 Jun 2015

CrystEngComm, 2015,17, 4912-4918
Article type
Paper

Metal organic frameworks from extended, conjugated pentiptycene-based ligands

A. K. Crane, N. G. White and M. J. MacLachlan, CrystEngComm, 2015, 17, 4912
DOI: 10.1039/C5CE00886G

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