Time-Resolved Assembly of Cluster-in-Cluster {Ag12}-in-{W76} Polyoxometalates under Supramolecular Control

被引：71

作者：

Zhan, Caihong ^{[1
]}

Cameron, Jamie M. ^{[1
]}

Gao, Jing ^{[1
]}

Purcell, Jamie W. ^{[1
]}

Long, De-Liang ^{[1
]}

Cronin, Leroy ^{[1
]}

机构：

[1] Univ Glasgow, Sch Chem, WestCHEM, Glasgow G12 8QQ, Lanark, Scotland

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 39期

基金：

英国工程与自然科学研究理事会;

关键词：

cluster compounds; nanostructures; self-assembly; supramolecular chemistry; polyoxometalates; BUILDING-BLOCKS; CHALCOGENIDE CLUSTERS; STRUCTURAL DIVERSITY; CRYSTAL-STRUCTURES; SILVER; ARCHITECTURES; POLYOXOTUNGSTATES; NANOSTRUCTURES; POLYOXOANIONS; MACROCYCLES;

D O I：

10.1002/anie.201402932

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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-infinity 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 {Ag-12} cluster, giving a {Ag-12}-in-{W-76} 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.

引用

页码：10362 / 10366

页数：5

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