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Open AccessArticle

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

Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
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Magnetochemistry 2020, 6(2), 19; https://doi.org/10.3390/magnetochemistry6020019
Received: 3 April 2020 / Revised: 8 April 2020 / Accepted: 10 April 2020 / Published: 15 April 2020
(This article belongs to the Special Issue Feature Papers in Magnetochemistry)
The two mononuclear complexes of the formula [Dy(tta)3(L)] (1) and [Dy(hfac)3(L)] (2) (where tta- = 2-thenoytrifluoroacetylacetonate and hfac- = 1,1,1,5,5,5-hexafluoroacetylacetonate) were obtained from the coordination reaction of the Dy(tta)3·2H2O or Dy(hfac)3·2H2O units with the 1,10-phenantroline-5,6-dione ligand (L). 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. View Full-Text
Keywords: dysprosium; 1,10-Phenantroline-5,6-dione; β-diketone; single molecule magnets; ab initio calculations dysprosium; 1,10-Phenantroline-5,6-dione; β-diketone; single molecule magnets; ab initio calculations
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Galangau, O.; Flores Gonzalez, J.; Montigaud, V.; Dorcet, V.; le Guennic, B.; Cador, O.; Pointillart, F. Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand. Magnetochemistry 2020, 6, 19.

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