A Terminal Fluoride Ligand Generates Axial Magnetic Anisotropy in Dysprosium Complexes

Lucie Norel (1) , Lucy E. Darago (2) , Boris Le Guennic (1) , Khetpakorn Chakarawet (2) , Miguel I. Gonzalez (2) , Jacob H. Olshansky (2) , Stéphane Rigaut (1) , Jeffrey R. Long (2)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 Department of Chemistry [Berkeley]

The first dysprosium complexes with a terminal fluoride ligand are obtained as air-stable compounds. The strong, highly electrostatic dysprosium-fluoride bond generates a large axial crystal-field splitting of the J=15/2 ground state, as evidenced by high-resolution luminescence spectroscopy and correlated with the single-molecule magnet behavior through experimental magnetic susceptibility data and ab initio calculations.

Keywords: ab initio calculations; Luminescence; magnetic properties; dysprosium; structure determination

Domains: Chemical Sciences; Coordination chemistry

Lucie Norel, Lucy E. Darago, Boris Le Guennic, Khetpakorn Chakarawet, Miguel I. Gonzalez, et al.. A Terminal Fluoride Ligand Generates Axial Magnetic Anisotropy in Dysprosium Complexes. Angewandte Chemie International Edition, 2018, 57 (7), pp.1933-1938. ⟨10.1002/anie.201712139⟩. ⟨hal-01717763⟩