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

Fabrice Pointillart | Zendy; Jiangkun Ouyang | Zendy; Guglielmo Fernandez Garcia | Zendy; Vincent Montigaud | Zendy; Jessica Flores González | Zendy; Rémi Marchal | Zendy; Ludovic Favereau | Zendy; Federico Totti | Zendy; Jeanne Crassous | Zendy; Olivier Cador | Zendy; Lahcène Ouahab | Zendy; Boris Le Guennic | Zendy

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

Author(s) -

Fabrice Pointillart,

Jiangkun Ouyang,

Guglielmo Fernandez Garcia,

Vincent Montigaud,

Jessica Flores González,

Rémi Marchal,

Ludovic Favereau,

Federico Totti,

Jeanne Crassous,

Olivier Cador,

Lahcène Ouahab,

Boris Le Guennic

Publication year - 2018

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/acs.inorgchem.8b02830

Subject(s) - chemistry , helicene , tetrathiafulvalene , dysprosium , single molecule magnet , ab initio , crystallography , magnet , molecule , ligand (biochemistry) , magnetic anisotropy , ab initio quantum chemistry methods , pyridine , magnetic field , magnetization , inorganic chemistry , organic chemistry , biochemistry , physics , receptor , quantum mechanics

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) 3 ·2H 2 O metalloprecursor. Magnetic investigations showed field-induced single-molecule-magnet (SMM) behavior under an applied magnetic field of 1000 Oe for [Dy(hfac) 3 (L)]·0.5CH 2 Cl 2 , 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.

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