Hydrocarbon-soluble, polymetallic, lanthanoid aryloxides constructed utilising ligands with distal But groups

Glen B. Deacon; Craig M. Forsyth; Rita Harika; Peter C. Junk; Joseph W. Ziller; William J. Evans

doi:10.1039/B405717A

Hydrocarbon-soluble, polymetallic, lanthanoid aryloxides constructed utilising ligands with distal Bu^t groups†

Glen B. Deacon,*^a Craig M. Forsyth,^a Rita Harika,^a Peter C. Junk,^a Joseph W. Ziller^b and William J. Evans^b

* Corresponding authors

^a School of Chemistry, Monash University, Clayton 3800, Australia
E-mail: glen.deacon@sci.monash.edu.au
Fax: +613 9905 4597
Tel: +613 9905 4568

^b Department of Chemistry, University of California, Irvine CA, USA
E-mail: wevans@uci.edu
Fax: +1 949 824 2210
Tel: +1 949 824 5174

Abstract

The lanthanoid(III) aryloxide complexes [La(OAr)₃(thf)₃]₂·5thf (1), [Nd₃(OAr)₉(thf)₄]·4thf (2), [Ln(OAr)₃(thf)₂]₂·2thf [Ln = Er (3); Yb (4)], [Ln(OAr)₃]_n [Ln = Eu (5); Yb (6)], [La₄(OAr)₁₂(OH₂)] (7) and [Nd₃(OAr)₉(HOAr)₂(thf)]·HOAr (8) (Ar = C₆H₃Bu^t₂-3,5) have been isolated from direct reactions of elemental lanthanoids and HOAr under high temperature conditions followed by crystallisation from thf or hexane. A key feature of these materials is the formation of hydrocarbon-soluble, polynuclear complexes, as established by X-ray crystallography, even in the presence of a strong donor (thf), as a consequence of the geometric properties of HOAr, which has minimal steric bulk near the ligating oxygen atom, allowing higher coordination numbers, but with hydrophobic Bu^t groups on the periphery conferring excellent solubility.

This article is part of the themed collection: From Molecules to Materials: Materials Discussion 7

Article information

https://doi.org/10.1039/B405717A

Article type

Paper

Submitted

16 Apr 2004

Accepted

27 May 2004

First published

24 Sep 2004

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J. Mater. Chem., 2004,14, 3144-3149

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Hydrocarbon-soluble, polymetallic, lanthanoid aryloxides constructed utilising ligands with distal Bu^t groups

G. B. Deacon, C. M. Forsyth, R. Harika, P. C. Junk, J. W. Ziller and W. J. Evans, J. Mater. Chem., 2004, 14, 3144 DOI: 10.1039/B405717A

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Journal of Materials Chemistry