|
|||||
|
|
Permethylated dinuclear Mn(III) coordination nanostructure with stripe-ordered magnetic domains |
|
| Authors: | Sergiu Shova Vasile Tiron Angelica Vlad Ghenadie Novitchi Dan G Dumitrescu Madalin Damoc Mirela-Fernanda Zaltariov Maria Cazacu |
| Institution: | 1. Department of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, Iasi, 700487 Romania
Contribution: Conceptualization, Formal analysis;2. Faculty of Physics, Alexandru Ioan Cuza University of Iasi, Blvd. Carol I no. 11, Ia?i, 700506 Romania Contribution: ?Investigation;3. Department of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, Iasi, 700487 Romania Contribution: Methodology;4. Laboratoire National des Champs Magnétiques Intenses, CNRS UPR 3228, 25 Rue des Martyrs, Grenoble, 38042 France Contribution: ?Investigation;5. Elettra-Sincrotrone Trieste S.C.p.A., Strada Statale 14-km 163,5 in AREA Science Park, Trieste, Basovizza, 34149 Italy Contribution: Formal analysis;6. Department of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, Iasi, 700487 Romania Contribution: ?Investigation;7. Department of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, Iasi, 700487 Romania |
| Abstract: | A di-manganese(III) complex structure was built by an original approach consisting of a two-step procedure. First, the mononuclear complex of the manganese(III) with the Schiff base of the salen-type ligand (H2L) derived from 1,3-bis(3-aminopropyl)tetramethyldisiloxane and 3,5-di-tert-butyl-2-hydroxybenzaldehyde was prepared. The main feature of note is the 12-membered chelate ring formed upon coordination of the Schiff base to central atom, which adopts a distorted N2O4 octahedron environment. In the second step, the acetato co-ligand in this complex is replaced by the carboxylate anion of a dicarboxilic acid, namely adipic acid. This metathesis reaction leads to the formation of dinuclear structure by connecting two manganese centers. The structure, as was determined by X-ray single crystal diffractometry, elemental and spectral analysis, is permethylated dinuclear complex with long aliphatic bridge. Thermal and magnetic properties were studied. In addition, the formation of magnetically induced stripe-ordered domains was highlighted by the magnetic force microscopy (MFM) on films born from diluted solution. |
| Keywords: | dicarboxylic ligand dimanganese(III) complex magnetic domains mixed ligands siloxane-spaced ligand |