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Issue 3, 2016
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Dual stimuli-induced formation of a μ-hydroxido bridged [Zn9L5(μ-OH)6]12+ half-pipe

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Abstract

Low-symmetry metal–organic architectures that feature unusual binding motifs are useful for exploring new modes of guest recognition. Such structures remain difficult to create using current rational design principles. One approach to constructing such architectures is to employ ligands with coordination vectors oriented to preclude the formation of simple, low nuclearity molecular assemblies upon complexation to metal ions. Here we report two new supramolecular assemblies generated from such a ligand: a simple metastable [Zn3L3]6+ assembly, which was observed to convert to a more complex [Zn9L5(μ-OH)6]12+ twisted half-pipe architecture. Two chemically distinct stimuli—an anionic template and a base—must be applied for the conversion to occur. Perchlorate, perrhenate, trifluoromethanesulfonate and 2-naphthalenesulfonate were found to act as competent templates for the [Zn9L5(μ-OH)6]12+ structure.

Graphical abstract: Dual stimuli-induced formation of a μ-hydroxido bridged [Zn9L5(μ-OH)6]12+ half-pipe

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Publication details

The article was received on 16 Oct 2015, accepted on 11 Nov 2015 and first published on 17 Nov 2015


Article type: Edge Article
DOI: 10.1039/C5SC03926F
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Chem. Sci., 2016,7, 1702-1706
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    Dual stimuli-induced formation of a μ-hydroxido bridged [Zn9L5(μ-OH)6]12+ half-pipe

    C. S. Wood, T. K. Ronson, A. J. McConnell, D. A. Roberts and J. R. Nitschke, Chem. Sci., 2016, 7, 1702
    DOI: 10.1039/C5SC03926F

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