Folding‐induced Fluorescence Enhancement in a Series of Merocyanine Hetero‐Folda‐Trimers

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Abstract: Many dyes suffer from fast non‐radiative decay pathways, thereby showing only short‐lived excited states and weak photoluminescence. Here we show a pronounced fluorescence enhancement for a weakly fluorescent merocyanine (MC) dye by being co‐facially stacked to other dyes in hetero‐folda‐trimer architectures. By means of fluorescence spectroscopy (lifetime, quantum yield) the fluorescence enhancement was explained by the rigidification of the emitting chromophore in the defined foldamer architecture and the presence of a non‐forbidden lowest exciton state in H‐coupled hetero‐aggregates. This folding‐induced fluorescence enhancement (FIFE) for specific sequences of π‐stacked dyes points at a viable strategy toward improved fluorophores that relates to the approach used by nature in the green fluorescent protein (GFP).

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Folding‐induced Fluorescence Enhancement in a Series of Merocyanine Hetero‐Folda‐Trimers ; day:29 ; month:11 ; year:2021 ; extent:6
Angewandte Chemie / International edition. International edition ; (29.11.2021) (gesamt 6)

Creator: Schulz, Alexander
Würthner, Frank

DOI: 10.1002/anie.202114667

URN: urn:nbn:de:101:1-2021113014142942789968

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:33 AM CEST

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Schulz, Alexander
Würthner, Frank

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Darstellung und optische Eigenschaften Donor-Akzeptor-substituierter Oligothiophene

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Folding‐induced Fluorescence Enhancement in a Series of Merocyanine Hetero‐Folda‐Trimers

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Other Objects (12)

Folding‐induced Fluorescence Enhancement in a Series of Merocyanine Hetero‐Folda‐Trimers

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Supramolecular dye chemistry : intermolecular interactions, self-organization, and photorefractive materials

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Folding‐Induced Promotion of Proton‐Coupled Electron Transfers via Proximal Base for Light‐Driven Water Oxidation

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Supramolecular dye chemistry : intermolecular interactions, self-organization, and photorefractive materials

Discrete Supramolecular Stacks by Self-Assembly and Folding of Bis(merocyanine) Dyes

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Discrete Supramolecular Architectures of Bay-linked Perylene Bisimide Dimers by Self-Assembly and Folding

2,3 : 6,7‐Naphthalene Bis (dicarboximide) Cyclophane: A Photofunctional Host for Ambient Delayed Fluorescence in Solution

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Folding‐Induced Promotion of Proton‐Coupled Electron Transfers via Proximal Base for Light‐Driven Water Oxidation

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