equipe COSM
chimie organique
santé et matériaux

Inorg. Chem. Front., 2020

Efficient Luminescence Control in a Dithienylethene Functionalized Cyclen Lanthanide Macrocyclic Complexes
Al Sabea, H.; Hamon, N.; GALANGAU, O.; Norel, L.; Maury, O.; Riobé, F.; Tripier, R.  and Rigaut, S.
Inorg. Chem. Front., 2020, adv., DOI: 10.1039/D0QI00354A

We report the synthesis of an original ligand scaffold and the corresponding yttrium(III), europium(III) and ytterbium(III) complexes. All three compounds show reversible photochromism with high photo-conversions. Photoluminescence experiments demonstrate that this design is adapted for both europium and ytterbium emission switching. The OFF/ON luminescence ratio are excellent in the case of europium (4 to 8 %) and still quite good in the case of ytterbium (around 13 %)