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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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Publication details

The article was received on 15 Mar 2012, accepted on 20 Jun 2012 and first published on 21 Jun 2012


Article type: Edge Article
DOI: 10.1039/C2SC20330H
Citation: Chem. Sci., 2012,3, 2823-2827
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    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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