Tetrathiafulvalene-Based Helicene Ligand in the Design of a Dysprosium Field-Induced Single-Molecule Magnet

Fabrice Pointillart; Jiang-Kun Ou-Yang; Guglielmo Fernandez Garcia; Vincent Montigaud; Jessica Flores Gonzalez; Rémi Marchal; Ludovic Favereau; Federico Totti; Jeanne Crassous; Olivier Cador; Lahcène Ouahab; Boris Le Guennic

Tetrathiafulvalene-Based Helicene Ligand in the Design of a Dysprosium Field-Induced Single-Molecule Magnet

Fabrice Pointillart ¹ Jiang-Kun Ou-Yang ¹ Guglielmo Fernandez Garcia ^{1, 2} Vincent Montigaud ¹ Jessica Flores Gonzalez ¹ Rémi Marchal ¹ Ludovic Favereau ¹ Federico Totti ² Jeanne Crassous ¹ Olivier Cador ¹ Lahcène Ouahab ¹ Boris Le Guennic ¹

1 ISCR - Institut des Sciences Chimiques de Rennes

2 UNIFI - University of Florence

Abstract : The design of a coordination complex that involves a ligand combining both a tetrathiafulvalene core and a helicene fragment was achieved thanks to the reaction between the new 2-{1-[2-methyl[6]helicene]-4,5-[4,5-bis(propylthio)tetrathiafulvalenyl]-1 H-benzimidazol-2-yl}pyridine ligand (L) and the Dy(hfac)·2HO metalloprecursor. Magnetic investigations showed field-induced single-molecule-magnet (SMM) behavior under an applied magnetic field of 1000 Oe for [Dy(hfac)(L)]·0.5CHCl, while experimentally oriented single-crystal magnetic measurements allowed for determination of the magnetic anisotropy orientation. The magnetic behavior was rationalized through ab initio CASSCF/SI-SO calculations. This redox-active chiral-field-induced SMM paves the way for the design of switchable-multiproperty SMMs.

Document type :

Journal articles

Domain :

Chemical Sciences / Coordination chemistry

Complete list of metadatas

Cited literature [32 references] Display Hide Download

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01976516
Contributor : Laurent Jonchère <>
Submitted on : Monday, January 14, 2019 - 12:00:00 AM
Last modification on : Tuesday, August 13, 2019 - 11:06:19 AM

Tetrathiafulvalene-Based Helicene Ligand in the Design of a Dysprosium Field-Induced Single-Molecule Magnet

Files

Identifiers

Données associées

Collections

Citation

Export

Metrics

39

13

Tetrathiafulvalene-Based Helicene Ligand in the Design of a Dysprosium Field-Induced Single-Molecule Magnet

Files

Identifiers

Données associées

Collections

Citation

Export

Share

Metrics

39

13