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

DOI: 10.1039/C5SC03926F DOI Help

Authors: Christopher Wood (University of Cambridge) , Tanya Ronson (University of Cambridge) , Anna Mcconnell (University of Cambridge) , Derrick A. Roberts (University of Cambridge) , Jonathan Nitschke (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemical Science

State: Published (Approved)
Published: November 2015
Diamond Proposal Number(s): 8464

Open Access Open Access

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 design 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 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-napthalenesulfonate were found to act as competent templates for the [Zn9L5(μ-OH)6]12+ structure.

Subject Areas: Chemistry

Instruments: I19-Small Molecule Single Crystal Diffraction

Added On: 18/11/2015 14:52

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