Issue 2, 2008
From the journal:

New Journal of Chemistry

A single molecule magnet (SMM) with a helicate structure†

Ghenadie Novitchi,a   Jean-Pierre Costes,*b   Jean-Pierre Tuchagues,b   Laure Vendierb  and  Wolfgang Wernsdorfer*c  

* Corresponding authors

a Institute of Chemistry, Academy of Sciences of Moldova, Academiei str. 3, Moldova

b Laboratoire de Chimie de Coordination du CNRS, UPR 8241, liée par conventions à l’Université Paul Sabatier et à l'Institut National Polytechnique de Toulouse, 205 route de Narbonne, France
E-mail: costes@lcc-toulouse.fr
Fax: +33 (0)5 61 55 30 03

c Institut Néel, CNRS & UJP, BP 166, France
E-mail: wolfgang.wernsdorfer@grenoble.cnrs.fr

Abstract

The X-ray structure determination of [L2Cu2Gd2(NO3)6(H2O)2](0.5H2O) (L = bis-[(2-hydroxy-3-ethoxyphenyl)methylene]-4,4′-methylenedianiline) confirms the existence of a tetranuclear double-stranded homotopic and unsaturated helicate. In each Cu–Gd pair, the reduced Cu⋯Gd distance allows ferromagnetic Cu–Gd superexchange interactions through two phenoxo oxygen atoms. Replacement of gadolinium ions by terbium ions yields the first example of a helicate behaving as a single molecule magnet (SMM).

Graphical abstract: A single molecule magnet (SMM) with a helicate structure

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Article information

DOI
https://doi.org/10.1039/B716283A
Article type
Letter
Submitted
23 Oct 2007
Accepted
27 Nov 2007
First published
05 Dec 2007

New J. Chem., 2008,32, 197-200

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A single molecule magnet (SMM) with a helicate structure

G. Novitchi, J. Costes, J. Tuchagues, L. Vendier and W. Wernsdorfer, New J. Chem., 2008, 32, 197 DOI: 10.1039/B716283A

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