Control of the transition temperatures of metallomesogens by specific interface design: application to Mn12 single molecule magnets

E. Terazzi; T. B. Jensen; B. Donnio; K. Buchwalder; C. Bourgogne; G. Rogez; B. Heinrich; J. Gallani; C. Piguet

doi:10.1039/C1DT10908A

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Control of the transition temperatures of metallomesogens by specific interface design: application to Mn₁₂ single molecule magnets†

E. Terazzi,*^a T. B. Jensen,^a B. Donnio,^b K. Buchwalder,^a C. Bourgogne,^b G. Rogez,^b B. Heinrich,^b J. Gallani^b and C. Piguet^a

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* Corresponding authors

^a Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 30 quai E. Ansermet, (Switzerland)
E-mail: Emmanuel.Terazzi@unige.ch

^b Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23 rue du Loess, BP43, Strasbourg cedex 2, France

Abstract

Reaction of the Single Molecule Magnet [Mn₁₂O₁₂(CH₃CO₂)₁₆(H₂O)₄] (Mn₁₂) with mesogenic dendritic ligands Li (i = 4, 5) quantitatively yields functional clusters [Mn₁₂O₁₂(Li-H)₁₆(H₂O)₄] (i = 4, 5) that self-organize into a thermotropic SmA-type liquid crystalline phase. The perturbation of the molecular interface by methylation of the terminal mesogenic cyanobiphenyl groups induces a significant decrease of the clearing temperature without affecting the magnetic properties and the supramolecular organization of the Mn₁₂-based clusters.

This article is part of the themed collection: Self-assembly in inorganic chemistry

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Article information

DOI: https://doi.org/10.1039/C1DT10908A
Article type: Communication
Submitted: 13 May 2011
Accepted: 21 Jun 2011
First published: 22 Aug 2011

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Dalton Trans., 2011,40, 12028-12032

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Control of the transition temperatures of metallomesogens by specific interface design: application to Mn₁₂ single molecule magnets

E. Terazzi, T. B. Jensen, B. Donnio, K. Buchwalder, C. Bourgogne, G. Rogez, B. Heinrich, J. Gallani and C. Piguet, Dalton Trans., 2011, 40, 12028 DOI: 10.1039/C1DT10908A

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