Supramolecular blueprint approach to metal-coordinated capsules

McKinlay, R.M., Cave, G.W.V. ORCID: 0000-0002-4167-1332 and Atwood, J.L., 2005. Supramolecular blueprint approach to metal-coordinated capsules. Proceedings of the National Academy of Sciences of the United States of America, 102 (17), pp. 5944-5948.

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Abstract

An important problem in designing any large network is the assembly of systems that are resilient to change. From a chemical point of view, an analogy can be employed where one requires supramolecular assemblies to maintain their dimensionality combined with limited structural perturbation in response to variation in its intermolecular framework. The identification of hydrogen bonded framework patterns within experimentally known supramolecular assemblies that are structurally robust to disruption and selective hydrogen substitution are envisioned to act as a supramolecular blueprint or template for metal-ion retroinsertion. Herein we report the formation of a large neutral discrete pseudospherical coordination capsule assembled from 6 pyrogallol[4]arene ligands and 24 Cu(II) metal-ions. Amazingly, this coordination capsule is structurally analogous to its hydrogen bonded counterpart. This shows a robust ability of pyrogallol[4]arene molecules to self-assemble into large hexameric cage structures from either the hydrogen bonding or metal-ligand coordination process. The identification of robust supramolecular assemblies that conserve their structure in response to interchangeability between hydrogen bonded networks for metal-coordination or inversely, represents an important advancement in supramolecular design.

Item Type: Journal article
Publication Title: Proceedings of the National Academy of Sciences of the United States of America
Creators: McKinlay, R.M., Cave, G.W.V. and Atwood, J.L.
Publisher: National Academy of Sciences
Date: 2005
Volume: 102
Number: 17
Identifiers:
NumberType
10.1073/pnas.0408113102DOI
Rights: Copyright © 2005 The National Academy of Sciences
Divisions: Schools > School of Science and Technology
Depositing User: EPrints Services
Date Added: 09 Oct 2015 10:08
Last Modified: 09 Jun 2017 13:19
URI: http://irep.ntu.ac.uk/id/eprint/8189

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