Directed synthesis of {CuII2ZnII2} and {CuII8ZnII8} heterometallic complexes

Ojea, M. J. H., Wilson, C. , Coles, S. J., Tuna, F. and Murrie, M. (2015) Directed synthesis of {CuII2ZnII2} and {CuII8ZnII8} heterometallic complexes. Dalton Transactions, 44(44), pp. 19275-19281. (doi:10.1039/C5DT03344F) (PMID:26490177)

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Abstract

Two new heterometallic complexes [Cu2Zn2(H4L)2(CH3COO)2Cl2]·2.5CH3OH·0.5H2O (1) and [Cu8Zn8(OH)8(H4L)8](Cl)2(ClO4)6·16H2O (2) have been synthesised following two different preparative routes, by using the polydentate ligand Bis–tris propane (H6L = 2,2′-(propane-1,3-diyldiimino)bis[2-(hydroxymethyl)propane-1,3-diol]). Herein, we describe the synthesis, structure, and magnetic properties of 1, a tetramer which forms in the absence of base and 2, a hexadecanuclear complex with a remarkable double-concentric ring structure that forms in the presence of base. Antiferromagnetic coupling between Cu(II) ions is observed in both compounds despite the long distances between paramagnetic metal centres, due to the involvement of diamagnetic Zn(II) ions in the magnetic exchange pathway.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Wilson, Dr Claire and Murrie, Professor Mark
Authors: Ojea, M. J. H., Wilson, C., Coles, S. J., Tuna, F., and Murrie, M.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Dalton Transactions
Publisher:Royal Society of Chemistry
ISSN:1477-9226
ISSN (Online):1477-9234
Copyright Holders:Copyright © 2015 Royal Society of Chemistry
First Published:First published in Dalton Transactions 2015(44):19275-19281
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
555881Atom-by-atom control for the targeted chemical synthesis of heterometallic molecular nanomagnetsMark MurrieEngineering & Physical Sciences Research Council (EPSRC)EP/I027203/1CHEM - CHEMISTRY