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Issue 48, 2012
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Molecular tectonics: zinc coordination networks based on centric and acentric porphyrins bearing pyridyl units

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Abstract

Two new ligands, one symmetric 1 and the other acentric 2, based on a porphyrin backbone bearing either two ethynylpyridyl or one pyridyl and one ethynylpyridyl coordinating groups connected to the porphyrin at two opposite meso positions have been designed and prepared. In the presence of a Zn(II) cation, they lead to the formation of neutral metallatectons 1-Zn and 2-Zn which self-assemble into coordination networks in the crystalline phase. Whereas the metallatecton 1-Zn leads exclusively to the formation of grid type 2D networks, 2-Zn generates two types of crystals with rod and rhombic morphologies. The rod type crystals are composed of a 1D zigzag type arrangement whereas crystals with rhombic morphology are composed of directional 2D grid type architecture. The packing of the latter leading to the formation of the crystal occurs in a centrosymmetric fashion causing thus the loss of directionality.

Graphical abstract: Molecular tectonics: zinc coordination networks based on centric and acentric porphyrins bearing pyridyl units

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Publication details

The article was received on 04 Sep 2012, accepted on 05 Oct 2012 and first published on 09 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT32051G
Citation: Dalton Trans., 2012,41, 14683-14689

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    Molecular tectonics: zinc coordination networks based on centric and acentric porphyrins bearing pyridyl units

    F. Sguerra, V. Bulach and M. W. Hosseini, Dalton Trans., 2012, 41, 14683
    DOI: 10.1039/C2DT32051G

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