Binuclear CuLn complexes (Ln(III) = Gd, Tb, Dy) of alcohol-functionalized bicompartmental Schiff-base ligand. Hydrogen bonding and magnetic behaviors
| Autor: | Abdelghani Chiboub Fellah, Soumia Boulefred, Bahjat El Rez, Fatima Zohra Chiboub Fellah, Jean-Pascal Sutter, Carine Duhayon |
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| Přispěvatelé: | Laboratoire de Chimie Inorganique et Environnement, Université de Tlemcen, Université de Tlemcen, Laboratoire de chimie de coordination (LCC), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire de Valorisation des Ressources en Eau (V.R.E), Université de Tlemcen (VRE) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Schiff base
010405 organic chemistry Stereochemistry Hydrogen bond Ligand Crystal structure 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Crystallography Deprotonation chemistry Materials Chemistry Moiety Single-molecule magnet [CHIM.COOR]Chemical Sciences/Coordination chemistry Physical and Theoretical Chemistry Derivative (chemistry) |
| Zdroj: | Inorganica Chimica Acta Inorganica Chimica Acta, Elsevier, 2016, 439, pp.24-29. ⟨10.1016/j.ica.2015.09.032⟩ |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/j.ica.2015.09.032⟩ |
| Popis: | International audience; Preparation, crystal structures and magnetic properties of a series of four binuclear Cu-Ln complexes are reported (Ln = Gd-III, Tb-III, and Dy-III). These are based on a bicompartmental Schiff-base ligand formed by condensation of 1,3-diaminopropan-2-ol with ortho-vanillin. This Schiff-base is known to usually involve its deprotonated alcohol group in metal coordination, which is not the case here. Instead the OH unit is engaged in H-bonding interactions. Intra-and inter-molecular H-bonds are formed when the alcohol group is located in axial position of the six-member ring formed by the diamino moiety and the Cu atom. In equatorial position, this group is only involved in intermolecular bonding. The corresponding Cu-Tb derivative is shown to behave as a Single Molecule Magnet with Delta k(B) = 24.6 K and tau(0) = 2.1 x 10(-8) s (HDC = 1.5 kOe). |
| Databáze: | OpenAIRE |
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