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

Article Article scientifique Article Circularly polarized luminescence from Tb( iii ) interacting with chiral polyether macrocycles eng 2022-10-04 2022-11-21 author Homberg Alexandre 671107 author Navazio Federica 916079 author Le Tellier Antoine Jacques Elie 931018 author Zinna Francesco 0000-0002-6331-6219 author Fuerstenberg Alexandre 0000-0002-6227-3122 135518 author Besnard Céline 0000-0001-5699-9675 682138 author Di Bari Lorenzo 0000-0003-2347-2150 author Lacour Jérôme 0000-0001-6247-8059 99165 16479-16485 10.1039/D2DT02627A 36218085 1477-9226 http://xlink.rsc.org/?DOI=D2DT02627A 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 5D4 → 7F5 terbium transition. The coordination mode and structure of the complex was studied using different analysis methods (NMR analysis, spectrophotometric titration and solid-state elucidation). Dewey 540 European Commission Helical systems for chiral organic light emitting diodes 859752 HEL4CHIROLED EU H2020 36 Département de chimie organique 141 40 Département de chimie minérale, analytique et appliquée 145 false 760 Groupe Lacour 1412 Groupe Laboratoire de Cristallographie Dalton transactions 51 43 59c69583-31ba-4538-b910-f290396943ee Article (Published version) Public Article-scientifique-from-unpaywall.pdf 1218080 application/pdf CC BY-3.0 Vignette Public Get.jpg 64797 image/jpeg openAccess Faculté des sciences / Section de chimie et biochimie / Département de chimie organique Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

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Circularly polarized luminescence from Tb( iii ) interacting with chiral polyether macrocycles	Dalton transactions			2022	355	108

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