Synthesis of Enantiopure Lanthanide Complexes Supported by Hexadentate <i>N</i>,<i>N</i>′-Bis(methylbipyridyl)bipyrrolidine and Their Circularly Polarized Luminescence
David Schnable, Kelila Freedman, Kaitlynn M. Ayers, Nathan D. Schley, Moshe Kol, Gaël Ung
Abstract
We report the synthesis of lanthanide complexes supported by enantiopure N,N′-bis(methylbipyridyl)bipyrrolidine and subsequent characterization through luminescence studies. Complexes of this ligand with the visibly emissive lanthanides Sm, Eu, Tb, and Dy are luminescent (ϕf of ≤0.32) and demonstrate strong preferential emission of circularly polarized light in all four cases (|glum| of ≤0.26). Notably, all four possess at least one transition with a |glum| of >0.2, and the strongest preferential emission is measured from the complexes of Sm and Dy.
Topics & Concepts
Enantiopure drugChemistryLanthanideLuminescenceStereochemistryCrystallographyOrganic chemistryOptoelectronicsIonEnantioselective synthesisCatalysisPhysicsLanthanide and Transition Metal ComplexesMagnetism in coordination complexesMolecular Sensors and Ion Detection