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Title

Circularly polarized luminescence from Tb( iii ) interacting with chiral polyether macrocycles

Authors
Zinna, Francesco
Di Bari, Lorenzo
Published in Dalton transactions. 2022, vol. 51, no. 43, p. 16479-16485
Abstract A straightforward two-step synthesis protocol affords a series of chiral amide-based bis-pyridine substituted polyether macrocycles. One ligand is particularly able to complex terbium(III) ions spontaneously. Upon complexation, interesting chiroptical properties are observed both in absorbance (ECD) and in fluorescence (CPL). In ligand-centered electronic circular dichroism, a sign inversion coupled with a signal enhancement is measured; while an easily detectable metal-centered circularly polarized luminescence with a glum of 0.05 is obtained for the main 5D47F5 terbium transition. The coordination mode and structure of the complex was studied using different analysis methods (NMR analysis, spectrophotometric titration and solid-state elucidation).
Identifiers
PMID: 36218085
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Research group Groupe Lacour
Project
European Commission: HEL4CHIROLED
Citation
(ISO format)
HOMBERG, Alexandre et al. Circularly polarized luminescence from Tb( iii ) interacting with chiral polyether macrocycles. In: Dalton transactions, 2022, vol. 51, n° 43, p. 16479-16485. doi: 10.1039/D2DT02627A https://archive-ouverte.unige.ch/unige:164878

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Deposited on : 2022-11-09

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