4.6 Article

Solid-State Emission and Aggregate Emission of Aroyl- S,N-Ketene Acetals Are Controlled and Tuned by Their Substitution Pattern

Journal

CHEMISTRY-A EUROPEAN JOURNAL
Volume 28, Issue 61, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202202579

Keywords

aggregation-induced emission; aroyl-S; N-ketene acetals; emission control; fluorescence; solid-state emission; structure-property relationships

Funding

  1. Fonds der Chemischen Industrie
  2. Deutsche Forschungsgemeinschaft [Mu 1088/9-1]
  3. Projekt DEAL

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Aroyl-S,N-ketene acetals are a highly diverse class of aggregation-induced emission fluorogens with a plethora of interesting properties. The interplay of substituents allows control over their emission color, intensity, and quantum yields both in solids and in the aggregated state.
Aroyl-S,N-ketene acetals are a novel highly diverse class of aggregation-induced emission fluorogens (AIEgens) with a plethora of interesting properties. An expanded compound library of more than 110 dyes set the stage for the first qualitative control and tuneability of all aspects of their photophysical properties. The interplay of substituents not only allows tuning and prediction of the emission color, but also of the intensity, and quantum yields both in solids and in the aggregated state; these can be rationalized by scrutinizing intermolecular interactions in the crystalline solid state.

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