Circularly polarized luminescence in the one-dimensional assembly of binaphtyl-based Yb( iii ) single-molecule magnets

Carlo Andrea Mattei (1) , Vincent Montigaud (1) , Bertrand Lefeuvre (1) , Vincent Dorcet (1) , Gilles Argouarch (1) , Olivier Cador (1) , Boris Le Guennic (1) , Olivier Maury (2) , Claudia Lalli (1) , Yannick Guyot (3) , Stéphan Guy (4) , Cyprien Gindre (4) , Amina Bensalah-Ledoux (4) , François Riobé (2, 5) , Bruno Baguenard (4) , Fabrice Pointillart (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 LC - Laboratoire de Chimie - UMR5182
3 iLM - LUMINESCENCE - iLM - Luminescence
4 iLM - MNP - iLM - Matériaux et nanostructures photoniques
5 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

Lanthanide ions have attracted great interest owing to their optical and magnetic properties. Single-molecule magnet (SMM) behavior has been a fascinating science for thirty years. Moreover, chiral lanthanide complexes allow the observation of remarkable circularly polarized luminescence (CPL). However, the combination of both SMM and CPL behaviors in a single molecular system is very rare and deserves attention in the design of multifunctional materials. Four chiral one-dimensional coordination compounds involving 1,1′-Bi-2-naphtol (BINOL)-derived bisphosphate ligands and the Yb(III) centre were synthesized and characterized by powder and single-crystal X-ray diffraction. All the Yb(III)-based polymers displayed field-induced SMM behavior with magnetic relaxation occurring by applying Raman processes and near infrared CPL in the solid state.

Domaines: Chimie de coordination; Chimie théorique et/ou physique

Carlo Andrea Mattei, Vincent Montigaud, Bertrand Lefeuvre, Vincent Dorcet, Gilles Argouarch, et al.. Circularly polarized luminescence in the one-dimensional assembly of binaphtyl-based Yb( iii ) single-molecule magnets. Journal of Materials Chemistry C, 2023, 11 (22), pp.7299-7310. ⟨10.1039/d3tc00858d⟩. ⟨hal-04127855⟩