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Keywords:

  • coumarins;
  • density functional calculations;
  • isomerization;
  • photochemistry;
  • photochromism
Thumbnail image of graphical abstract

Keeping it in the family: A new family of 5-styrylcoumarins exhibit E–Z isomerization around the Cα[DOUBLE BOND]Cβ bond with large extinction coefficients, medium-lived excited states, and moderate fluorescence quantum yields (see picture). The alteration of these photophysical properties is also corroborated by computational studies.