학술논문

Light‐Induced Charge Separation in Covalently Linked BODIPY‐Quinone‐Alkyne Dyads.
Document Type
Article
Source
Chemistry - A European Journal. May2024, Vol. 30 Issue 25, p1-13. 13p.
Subject
*DYADS
*QUINONE
*ARTIFICIAL photosynthesis
*CLICK chemistry
*CHARGE transfer
*ELECTROCHEMICAL analysis
*RING formation (Chemistry)
*COUPLING reactions (Chemistry)
Language
ISSN
0947-6539
Abstract
Visible light‐induced charge separation and directional charge transfer are cornerstones for artificial photosynthesis and the generation of solar fuels. Here, we report synthetic access to a series of noble metal‐free donor‐acceptor dyads based on bodipy light‐absorbers and redox‐active quinone/anthraquinone charge storage sites. Peripheral functionalization of the quinone/anthraquinone units with alkynes primes the dyads for integration into a range of light‐harvesting systems, e. g., by Cu‐catalyzed cycloadditions (CLICK chemistry) or Pd‐catalyzed C−C cross‐coupling reactions. Initial photophysical, electrochemical and theoretical analyses reveal the principal processes during the light‐induced charge separation in the reported dyads. [ABSTRACT FROM AUTHOR]