Synthesis and characterization of magnetic organic-inorganic nanocomposites based on the [Mn2O12{CH2C(CH3)COO}16(H2O)4] building block

Stephanie Willemin; Bruno Donnadieu; Lollita Lecren; Bernard Henner; Rodolphe Clérac; Christian Guérin; Albert Meyer; Alexander V. Pokrovskii; Joulia Larionova

doi:10.1039/B402080D

Synthesis and characterization of magnetic organic-inorganic nanocomposites based on the [Mn₂O₁₂{CH₂C(CH₃)COO}₁₆(H₂O)₄] building block†

Stephanie Willemin,^a Bruno Donnadieu,^b Lollita Lecren,^c Bernard Henner,^a Rodolphe Clérac,^c Christian Guérin,^a Albert Meyer,^d Alexander V. Pokrovskii^e and Joulia Larionova*^a

Author affiliations

* Corresponding authors

^a Laboratoire de Chimie Moléculaire et Organisation du Solide (LCMOS; CNRS UMR 5637), Université Montpellier II, Place E. Bataillon, CC 007, Montpellier cedex 5, France
E-mail: joulia@univ-montp2.fr
Fax: +33 4 67 14 38 52

^b Laboratoire de Chimie de Coordination (LCC; CNRS UPR 8241), CNRS, 205 Route de Narbonne, Toulouse cedex 4, France

^c Centre de Recherche Paul Pascal (CRPP; CNRS UPR 864, CNRS, 115 avenue du Dr. A. Schweitzer, Pessac, France

^d Laboratoire de Chimie Organique Biomoléculaire de Synthèse (CNRS UMR 5625), Université Montpellier II, Place E. Bataillon, CC 008, Montpellier cedex 5, France

^e Technology University of St. Petersburg, Moskovskii 26, St. Petersburg, Russia

Abstract

The new methacrylate-substituted manganese carboxylate cluster [Mn₁₂O₁₂{CH₂C(CH₃)COO}₁₆(H₂O)₄] having single molecule magnetic (SMM) properties was synthesized and fully characterized by X-ray crystallography, LDI-TOF, fast atom bombardment (FAB) analyses and magnetic measurements. This cluster, containing sixteen polymerizable functionalities, was used as a cross-linker in the radical copolymerization with methyl methacrylate monomer in order to obtain hybrid cross-linked copolymers. The obtained nanocomposites were studied by infrared spectroscopy, magnetic measurements, thermogravimetric analysis, differential scanning calorimetry and transmission electronic microscopy. All these methods, along with the study of the swelling properties, reveal that the intact manganese cluster is enwrapped and covalently bonded to the polymer matrix, allowing to improve its chemical and thermal stability. The resulting nanocomposite materials have SMM properties.

Article information

https://doi.org/10.1039/B402080D

Article type

Paper

Submitted

10 Feb 2004

Accepted

07 Apr 2004

First published

21 Jul 2004

Download Citation

New J. Chem., 2004,28, 919-928

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Synthesis and characterization of magnetic organic-inorganic nanocomposites based on the [Mn₂O₁₂{CH₂C(CH₃)COO}₁₆(H₂O)₄] building block

S. Willemin, B. Donnadieu, L. Lecren, B. Henner, R. Clérac, C. Guérin, A. Meyer, A. V. Pokrovskii and J. Larionova, New J. Chem., 2004, 28, 919 DOI: 10.1039/B402080D

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New Journal of Chemistry