Time-resolved assembly of cluster-in-cluster {Ag12}-in-{W76} polyoxometalates under supramolecular control

Zhan, C., Cameron, J. M., Gao, J., Purcell, J. W., Long, D. L. and Cronin, L. (2014) Time-resolved assembly of cluster-in-cluster {Ag12}-in-{W76} polyoxometalates under supramolecular control. Angewandte Chemie (International Edition), 53(39), pp. 10362-10366. (doi:10.1002/anie.201402932) (PMID:25087861)

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Abstract

We report the time-resolved supramolecular assembly of a series of nanoscale polyoxometalate clusters (from the same one-pot reaction) of the form: [H(10+m)Ag18Cl(Te3W38O134)2]n, where n=1 and m=0 for compound 1 (after 4 days), n=2 and m=3 for compound 2 (after 10 days), and n=∞ and m=5 for compound 3 (after 14 days). The reaction is based upon the self-organization of two {Te3W38} units around a single chloride template and the formation of a {Ag12} cluster, giving a {Ag12}-in-{W76} cluster-in-cluster in compound 1, which further aggregates to cluster compounds 2 and 3 by supramolecular Ag-POM interactions. The proposed mechanism for the formation of the clusters has been studied by ESI-MS. Further, control experiments demonstrate the crucial role that TeO32−, Cl−, and Ag+ play in the self-assembly of compounds 1–3.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cameron, Mr Jamie and Long, Dr De Liang and Cronin, Professor Leroy
Authors: Zhan, C., Cameron, J. M., Gao, J., Purcell, J. W., Long, D. L., and Cronin, L.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Angewandte Chemie (International Edition)
Publisher:Wiley - V C H Verlag
ISSN:1433-7851
ISSN (Online):1521-3773

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