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Scientific article
Open access
English

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

Published inDalton transactions, vol. 51, no. 43, p. 16479-16485
Publication date2022-11-21
First online date2022-10-04
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).

eng
Funding
  • European Commission - Helical systems for chiral organic light emitting diodes [859752]
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
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Article (Published version)
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ISSN of the journal1477-9226
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Creation11/08/2022 3:04:00 PM
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