Modulation of self-assembly and magnetism of Cu(II) grids in solution

Nathalie Parizel; Juan Ramírez; Christophe Burg; Sylvie Choua; Maxime Bernard; Serge Gambarelli; Vincent Maurel; Lydia Brelot; Jean-Marie Lehn; Philippe Turek; Adrian-Mihail Stadler

doi:10.1039/C0CC01612H

Modulation of self-assembly and magnetism of Cu(ii) grids in solution†

Nathalie Parizel,‡^a Juan Ramírez,‡^b Christophe Burg,‡^a Sylvie Choua,^a Maxime Bernard,^a Serge Gambarelli,^c Vincent Maurel,^c Lydia Brelot,^a Jean-Marie Lehn,^d Philippe Turek §*^a and Adrian-Mihail Stadler §*^de

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^a Institut de Chimie (UMR 7177 CNRS-UDS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg Cedex, France

^b Institut de Recherche de l'Ecole de Biotechnologie de Strasbourg, UMR 7242, Bvd Sébastien Brandt, 67412 Illkirch, France

^c CEA, INAC, SCIB, Laboratoire de Résonance Magnétique (UMR-E 3 CEA-UJF), 17 rue des Martyrs, 38054 Grenoble Cedex 09, France

^d Institut de Science et d'Ingénierie Supramoléculaires, 8 Allée Gaspard Monge, 67083 Strasbourg Cedex, France

^e Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT), 76344 Eggenstein-Leopoldshafen, Germany

Abstract

Depending on the Cu(II)/ligand molar ratio, a pyrimidine-based ligand generates a tetranuclear grid (1/1) or a dinuclear stick (2/1). EPR, MS and visible spectroscopy studies suggest that dilution produces partial dissociation of the grid in solution. Replacement of 2-H-pyrimidine by a 2-phenyl-triazine unit prevents the dissociation of the grid. All these factors influence the magnetic properties of the architectures herein involved.

Chemical Communications

Modulation of self-assembly and magnetism of Cu(ii) grids in solution†

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Modulation of self-assembly and magnetism of Cu(II) grids in solution

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