Unprecedented encapsulation of a [FeIIICl4]− anion in a cationic [FeII4L6]8+ tetrahedral cage derived from 5,5′′′-dimethyl-2,2′:5′,5′′:2′′,2′′′-quaterpyridine

Christopher R. K. Glasson; Jack K. Clegg; John C. McMurtrie; George V. Meehan; Leonard F. Lindoy; Cherie A. Motti; Boujemaa Moubaraki; Keith S. Murray; John D. Cashion

doi:10.1039/C0SC00523A

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Unprecedented encapsulation of a [Fe^IIICl₄]⁻ anion in a cationic [Fe^II₄L₆]⁸⁺ tetrahedral cage derived from 5,5′′′-dimethyl-2,2′:5′,5′′:2′′,2′′′-quaterpyridine†

Christopher R. K. Glasson,^a Jack K. Clegg,^bc John C. McMurtrie,^d George V. Meehan,*^a Leonard F. Lindoy,*^ab Cherie A. Motti,^e Boujemaa Moubaraki,^f Keith S. Murray^f and John D. Cashion^g

Author affiliations

* Corresponding authors

^a School of Pharmacy and Molecular Sciences, James Cook University, Townsville, Qld, Australia
E-mail: George.Meehan@jcu.edu.au

^b School of Chemistry, F11, The University of Sydney, NSW, Australia
E-mail: lindoy@chem.usyd.edu.au
Fax: +61 293513329

^c Department of Chemistry, The University of Cambridge, Lensfield Rd, Cambridge, UK

^d Chemistry, Queensland University of Technology, GPO Box 2434, Brisbane, Australia

^e The Australian Institute of Marine Science, Townsville, Qld, Australia

^f School of Chemistry, Monash University, PO Box 23, Clayton, Vic., Australia

^g School of Physics, Monash University, PO Box 23, Clayton, Vic., Australia

Abstract

A unique example of incorporation of a tetrahalometalate anion in a small supramolecular cage is described in which a tetrahedral cage of type [Fe₄L₆]⁸⁺ selectively encapsulates a [Fe^IIICl₄]⁻ anion over a [Fe^IICl₄]²⁻ anion in its central cavity to yield a discrete, mixed oxidation state, Fe(II)/Fe(III) supramolecular assembly. This unusual outcome has been achieved using two alternative synthetic strategies.

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Article information

DOI: https://doi.org/10.1039/C0SC00523A
Article type: Edge Article
Submitted: 16 Oct 2010
Accepted: 04 Nov 2010
First published: 25 Nov 2010

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Chem. Sci., 2011,2, 540-543

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Unprecedented encapsulation of a [Fe^IIICl₄]⁻ anion in a cationic [Fe^II₄L₆]⁸⁺ tetrahedral cage derived from 5,5′′′-dimethyl-2,2′:5′,5′′:2′′,2′′′-quaterpyridine

C. R. K. Glasson, J. K. Clegg, J. C. McMurtrie, G. V. Meehan, L. F. Lindoy, C. A. Motti, B. Moubaraki, K. S. Murray and J. D. Cashion, Chem. Sci., 2011, 2, 540 DOI: 10.1039/C0SC00523A

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