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Issue 9, 2012
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Vertex-directed self-assembly of a high symmetry supermolecular building block using a custom-designed porphyrin

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Abstract

Metal–organic materials that are constructed from polyhedral supermolecular building blocks, SBBs, can offer exquisite control over structure and afford useful features such as multiple cage types and relatively narrow pores. This contribution describes how a custom-designed porphyrin, tdcpp, self-assembles with M(II) (M = Zn, Cd) cations to generate the first examples of SBBs that are uniform polyhedra based upon a porphyrin molecular building block, MBB. The faces of tdcpp moieties link triangular M2(CO2)3 or M(CO2)3 moieties to form small cubicuboctahedral SBBs that are in turn fused to adjacent SBBs at the opposite face of each tdcpp moiety. The resulting high symmetry augmented pcu topology networks, MMPF-4 (M = Zn) and MMPF-5 (M = Cd), exhibit two distinct polyhedral cages and are permanently microporous with selective CO2 uptake.

Graphical abstract: Vertex-directed self-assembly of a high symmetry supermolecular building block using a custom-designed porphyrin

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Submitted
15 Mar 2012
Accepted
20 Jun 2012
First published
21 Jun 2012

Chem. Sci., 2012,3, 2823-2827
Article type
Edge Article

Vertex-directed self-assembly of a high symmetry supermolecular building block using a custom-designed porphyrin

X. Wang, M. Chrzanowski, W. Gao, L. Wojtas, Y. Chen, M. J. Zaworotko and S. Ma, Chem. Sci., 2012, 3, 2823
DOI: 10.1039/C2SC20330H

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