Communication of Bichromophore Emission upon Aggregation – Aroyl‐S,N‐ketene Acetals as Multifunctional Sensor Merocyanines
| Autor: | Thomas Müller, Lars May, Ute Resch-Genger, Katrin Hoffmann, Nithiya Nirmalananthan-Budau, Lukas Biesen |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
aggregation-induced emission
Indoles One-pot synthesis Ketene Salt (chemistry) Photochemistry Catalysis chemistry.chemical_compound Acetals Suzuki reaction one-pot synthesis Benzopyrans chemistry.chemical_classification energy transfer Full Paper Chemistry Communication Organic Chemistry Condensation Acetal General Chemistry Chromophore Full Papers Ethylenes Ketones Fluorescence aroyl-S N-ketene acetals bichromophores fluorescence |
| Zdroj: | Chemistry (Weinheim an Der Bergstrasse, Germany) |
| ISSN: | 1521-3765 0947-6539 |
| Popis: | Aroyl‐S,N‐ketene acetal‐based bichromophores can be readily synthesized in a consecutive three‐component synthesis in good to excellent yields by condensation of aroyl chlorides and an N‐(p‐bromobenzyl) 2‐methyl benzothiazolium salt followed by a Suzuki coupling, yielding a library of 31 bichromophoric fluorophores with substitution pattern‐tunable emission properties. Varying both chromophores enables different communication pathways between the chromophores, exploiting aggregation‐induced emission (AIE) and energy transfer (ET) properties, and thus, furnishing aggregation‐based fluorescence switches. Possible applications range from fluorometric analysis of alcoholic beverages to pH sensors. Multifunctional shining tool: A library of 31 aroyl‐S,N‐ketene acetal solid‐state emissive bichromophores, synthesized by a consecutive three‐component reaction (3CR), exhibits aggregation induced emission (AIE), acidochromicity, as well as dual emission and energy transfer in aggregates suitable for alcoholic beverage analysis and encapsulation in micrometer sized polystyrene particles with enhanced fluorescence quantum yield. |
| Databáze: | OpenAIRE |
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