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Updated: Dec 2, 2025
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
High circularly polarized luminescence brightness from analogues of Shibasaki's lanthanide complexes
Min Deng1, Nathan D Schley2, Gaël Ung1
1Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, USA. gael.ung@uconn.edu.
Abstract:
To reach the promising potential of circularly polarized luminescence (CPL) emitters, high CPL brightness must be achieved. We describe the synthesis of analogues of the C3-symmetrical Shibasaki's lanthanide complexes (Sm, Tb, Dy) supported by enantiopure 5,5',6,6',7,7',8,8'-octahydro-1,1'-bi-2-naphthol (H8-Binol). The complexes exhibit visible luminescence in solution with exceptionally high quantum yields for Sm (4%) and Dy (17%), and strong circularly polarized luminescence for Sm, Tb, and Dy (|glum| up to 0.44, 0.32, 0.33, respectively). Altogether, these complexes possess amongst the strongest CPL brightness reported to date in lanthanide molecular complexes (up to 782 M-1 cm-1 for Tb).
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