Tuning the Photophysical Properties of Aza‐BODIPYs in the Near‐Infrared Region by Introducing Electron‐Donating Thiophene Substituents
Résumé
This study presents the synthesis, the spectroscopic
and electrochemical properties of new bis- and tetra-
substituted azaboron-dipyrromethene (aza-BODIPY) dyes sub-
stituted by different electron donating groups connected to
the aza-BODIPY core through a thiophene unit. In line with
theoretical calculations, experimental measurements point
out the positive impact of the thiophene group that behave
as a secondary donor group leading to an enhancement of
the intramolecular charge transfer process in comparison to
previously reported aza-BODIPY dyes. This heterocycle has
also been found to tune the oxidative potential and to
stabilize the electro-generated species.
Domaines
Chimie
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Chemistry A European J - 2023 - Baron - Tuning the Photophysical Properties of Aza‐BODIPYs in the Near‐Infrared Region by.pdf (5.9 Mo)
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