Circularly polarized luminescence from Tb(<scp>iii</scp>) interacting with chiral polyether macrocycles

Homberg, Alexandre; Federica, Navazio,; Tellier, Antoine Le; Zinna, Francesco; Fürstenberg, Alexandre; Besnard, Céline; Bari, Lorenzo Di; Lacour, Jérôme

doi:10.1039/d2dt02627a

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Cpl Materials Based On Chiral Macrocycles1

Introduction1

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2023

2024

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Cited by 4 publications

(2 citation statements)

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“…3). 18 The emission spectra of 3a , 3b and 3c showed similar results. Due to the lack of two oxygen atoms in 3d , the emission intensity of 3d became weaker.…”

Section: Cpl Materials Based On Chiral Macrocyclessupporting

confidence: 52%

Advances in circularly polarized luminescence materials based on chiral macrocycles

Wang,

Han,

Han

et al. 2023

Chem. Commun.

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“…3). 18 The emission spectra of 3a , 3b and 3c showed similar results. Due to the lack of two oxygen atoms in 3d , the emission intensity of 3d became weaker.…”

Section: Cpl Materials Based On Chiral Macrocyclessupporting

confidence: 52%

Advances in circularly polarized luminescence materials based on chiral macrocycles

Wang,

Han,

Han

et al. 2023

Chem. Commun.

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“…180° and the resulting inward orientation of the CO bonds helps complex the cations. 17,18 As a consequence, the aromatic rings carried by the N-atoms move apart from one another, elongating sufficiently the distance between the chromophores to monitor the conformational change (Fig. 1C).…”

Section: Introductionmentioning

confidence: 99%

Pfeiffer effect on configurationally labile dyes within ternary complexes with metal ions and enantiopure macrocycles

Pál,

Lacour

2024

Dalton Trans.

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Superior Circularly Polarized Luminescence Brightness Achieved with Chiral Heteroleptic Nine-Coordinate Coumarin-Based Tb³⁺ Complexes

Liu,

Song,

Niu

et al. 2024

Inorg. Chem.

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In order to facilitate the practical application of circularly polarized luminescence (CPL) active molecules, the CPL brightness (B CPL) must be optimized. We have applied a binary modular strategy to synthesize two chiral organo-Tb3+ complexes, [Tb(Coum)3(1R,2R-Ph-PyBox)] (2) and [Tb(Coum)3(1S,2S-Ph-PyBox)] (5), combining 3-acetyl-4-hydroxy-coumarin (Coum) and enantiopure 2,6-bis(4-phenyl-2-oxazolin-2-yl) pyridine (1 R ,2 R /1 S ,2 S -Ph-PyBox). The photophysical properties of these novel complexes have been fully characterized. The combined point-chiral induction capability of chiral bis(oxazoline) derivatives and the outstanding photophysical properties of the coumarin-derived ligand have resulted in an intense excited-state chiroptical activity (|g lum| = 0.097–0.103) for both Tb3+ enantiomers, with a bright Tb3+-centered high-purity green emission (Φ PL = 74%) and enhanced antenna-centered absorption behavior (ε 320 nm = 47820–47940 M–1 cm–1). A superior B CPL (1132.7–1205.8 M–1 cm–1 at 5D4 → 7F5) has been established for complexes 2 and 5. The strategy adopted in this work provides a new route to chiroptical organo-Tb3+ luminophores with outstanding comprehensive performance.

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

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) ion spontaneously. Upon complexation, interesting chiroptical properties...

Cited by 4 publications

References 72 publications

Advances in circularly polarized luminescence materials based on chiral macrocycles

Advances in circularly polarized luminescence materials based on chiral macrocycles

Pfeiffer effect on configurationally labile dyes within ternary complexes with metal ions and enantiopure macrocycles

Superior Circularly Polarized Luminescence Brightness Achieved with Chiral Heteroleptic Nine-Coordinate Coumarin-Based Tb³⁺ Complexes

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

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) ion spontaneously. Upon complexation, interesting chiroptical properties...

Cited by 4 publications

References 72 publications

Advances in circularly polarized luminescence materials based on chiral macrocycles

Advances in circularly polarized luminescence materials based on chiral macrocycles

Pfeiffer effect on configurationally labile dyes within ternary complexes with metal ions and enantiopure macrocycles

Superior Circularly Polarized Luminescence Brightness Achieved with Chiral Heteroleptic Nine-Coordinate Coumarin-Based Tb3+ Complexes

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Product

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Superior Circularly Polarized Luminescence Brightness Achieved with Chiral Heteroleptic Nine-Coordinate Coumarin-Based Tb³⁺ Complexes