Issue 8, 2008
From the journal:

Journal of Materials Chemistry

Layered ferromagnets hosting tetraalkylammonium-substituted nitronyl nitroxide free radicals†

Eugenio Coronado,a   Carlos Giménez-Saiz,ab   Carlos J. Gómez-García,a   Francisco M. Romero*ab  and  Ana Tarazóna  

* Corresponding authors

a Instituto de Ciencia Molecular, Universitat de València, P. O. Box 22085, Valencia, Spain
E-mail: fmrm@uv.es
Fax: 34 963543273
Tel: 34 963544405

b Fundació General de la Universitat de València

Abstract

This paper describes the structural, magnetic and EPR properties of hybrid organic/inorganic magnets formed by anionic heterometallic oxalato-based layers and cationic nitronyl nitroxide (NN) free radicals of the tetraalkylammonium type. A series of compounds of formula nBu3NCH2NN[MCr(ox)3] (M = Mn (1), Ni (2), Zn (3)) has been prepared and studied by AC and DC magnetic susceptibility measurements and EPR spectroscopy. Magnetic order with critical temperatures ranging from 5 K to 15 K was confirmed. EPR measurements show that the organic spin carriers interact significantly with the inorganic network.

Graphical abstract: Layered ferromagnets hosting tetraalkylammonium-substituted nitronyl nitroxide free radicals

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Article information

DOI
https://doi.org/10.1039/B715739H
Article type
Paper
Submitted
11 Oct 2007
Accepted
29 Nov 2007
First published
14 Jan 2008

J. Mater. Chem., 2008,18, 929-934

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Layered ferromagnets hosting tetraalkylammonium-substituted nitronyl nitroxide free radicals

E. Coronado, C. Giménez-Saiz, C. J. Gómez-García, F. M. Romero and A. Tarazón, J. Mater. Chem., 2008, 18, 929 DOI: 10.1039/B715739H

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