Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand

Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand

The two mononuclear complexes of the formula [Dy(tta)<sub>3</sub>(<b>L</b>)] (<b>1</b>) and [Dy(hfac)<sub>3</sub>(<b>L</b>)] (<b>2</b>) (where tta<sup>-</sup> = 2-thenoytrifluoroacetylacetonate and hfac<sup>-&l...

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Main Authors: Olivier Galangau, Jessica Flores Gonzalez, Vincent Montigaud, Vincent Dorcet, Boris le Guennic, Olivier Cador, Fabrice Pointillart
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Magnetochemistry
Subjects:
dysprosium
1,10-Phenantroline-5,6-dione
β-diketone
single molecule magnets
ab initio calculations
Online Access:https://www.mdpi.com/2312-7481/6/2/19
id doaj-c03b55eff2274415a49dfdec682ce4b5
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spelling doaj-c03b55eff2274415a49dfdec682ce4b52020-11-25T02:32:10ZengMDPI AGMagnetochemistry2312-74812020-04-016191910.3390/magnetochemistry6020019Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione LigandOlivier Galangau0Jessica Flores Gonzalez1Vincent Montigaud2Vincent Dorcet3Boris le Guennic4Olivier Cador5Fabrice Pointillart6Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceUniv Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceUniv Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceUniv Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceUniv Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceUniv Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceUniv Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, FranceThe two mononuclear complexes of the formula [Dy(tta)<sub>3</sub>(<b>L</b>)] (<b>1</b>) and [Dy(hfac)<sub>3</sub>(<b>L</b>)] (<b>2</b>) (where tta<sup>-</sup> = 2-thenoytrifluoroacetylacetonate and hfac<sup>-</sup> = 1,1,1,5,5,5-hexafluoroacetylacetonate) were obtained from the coordination reaction of the Dy(tta)<sub>3</sub>·2H<sub>2</sub>O or Dy(hfac)<sub>3</sub>·2H<sub>2</sub>O units with the 1,10-phenantroline-5,6-dione ligand (<b>L</b>). Their structures have been determined by X-ray diffraction studies on single crystals, and they revealed a supramolecular assembly of tetramers through σ-π interactions. Both complexes displayed a Single-Molecule Magnet (SMM) behavior without an external applied magnetic field. Magnetic relaxation happened through Orbach, Raman and Quantum Tunneling of the Magnetization (QTM). Wavefunction theory calculations were realized to rationalize the magnetic properties.https://www.mdpi.com/2312-7481/6/2/19dysprosium1,10-Phenantroline-5,6-dioneβ-diketonesingle molecule magnetsab initio calculations
collection DOAJ
language English
format Article
sources DOAJ
author Olivier Galangau
Jessica Flores Gonzalez
Vincent Montigaud
Vincent Dorcet
Boris le Guennic
Olivier Cador
Fabrice Pointillart
spellingShingle Olivier Galangau
Jessica Flores Gonzalez
Vincent Montigaud
Vincent Dorcet
Boris le Guennic
Olivier Cador
Fabrice Pointillart
Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand
Magnetochemistry
dysprosium
1,10-Phenantroline-5,6-dione
β-diketone
single molecule magnets
ab initio calculations
author_facet Olivier Galangau
Jessica Flores Gonzalez
Vincent Montigaud
Vincent Dorcet
Boris le Guennic
Olivier Cador
Fabrice Pointillart
author_sort Olivier Galangau
title Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand
title_short Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand
title_full Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand
title_fullStr Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand
title_full_unstemmed Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand
title_sort dysprosium single-molecule magnets involving 1,10-phenantroline-5,6-dione ligand
publisher MDPI AG
series Magnetochemistry
issn 2312-7481
publishDate 2020-04-01
description The two mononuclear complexes of the formula [Dy(tta)<sub>3</sub>(<b>L</b>)] (<b>1</b>) and [Dy(hfac)<sub>3</sub>(<b>L</b>)] (<b>2</b>) (where tta<sup>-</sup> = 2-thenoytrifluoroacetylacetonate and hfac<sup>-</sup> = 1,1,1,5,5,5-hexafluoroacetylacetonate) were obtained from the coordination reaction of the Dy(tta)<sub>3</sub>·2H<sub>2</sub>O or Dy(hfac)<sub>3</sub>·2H<sub>2</sub>O units with the 1,10-phenantroline-5,6-dione ligand (<b>L</b>). Their structures have been determined by X-ray diffraction studies on single crystals, and they revealed a supramolecular assembly of tetramers through σ-π interactions. Both complexes displayed a Single-Molecule Magnet (SMM) behavior without an external applied magnetic field. Magnetic relaxation happened through Orbach, Raman and Quantum Tunneling of the Magnetization (QTM). Wavefunction theory calculations were realized to rationalize the magnetic properties.
topic dysprosium
1,10-Phenantroline-5,6-dione
β-diketone
single molecule magnets
ab initio calculations
url https://www.mdpi.com/2312-7481/6/2/19
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