Redox-Active Dysprosium Single-Molecule Magnet: Spectro-Electrochemistry and Theoretical Investigations

Guglielmo Fernandez Garcia (1) , Vincent Montigaud (1) , Lucie Norel (1) , Olivier Cador (1) , Boris Le Guennic (1) , Federico Totti (2) , Fabrice Pointillart (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 Department of Chemistry “Ugo Schiff”

The mononuclear single-molecule magnet (SMM) [Dy(tta)3(L)]⋅C6H14 (1) (where tta− = 2-thenoyltrifluoroacetonate and L = 4,5-bis(propylthio)-tetrathiafulvalene-2-(2-pyridyl)benzimidazole-methyl-2-pyridine) was studied by spectro-electrochemistry. The resulting electronic spectra of the three oxidation states 1, 1+∙, and 12+ were rationalized by time-dependent density functional theory (TD-DFT) calculations starting from the DFT optimized structures. The modulation of the magnetic anisotropy of the DyIII center upon oxidation was also inspected at the Complete Active Space Self-Consistent Field (CASSCF) level of calculation

Domains: Chemical Sciences; Coordination chemistry

Guglielmo Fernandez Garcia, Vincent Montigaud, Lucie Norel, Olivier Cador, Boris Le Guennic, et al.. Redox-Active Dysprosium Single-Molecule Magnet: Spectro-Electrochemistry and Theoretical Investigations. Magnetochemistry, 2019, 5 (3), pp.46. ⟨10.3390/magnetochemistry5030046⟩. ⟨hal-02302547⟩