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Energy Relay Enhances Switching Efficiency in a Dendrimer–Azobenzene Supramolecular Assembly with an Anion–π Motif
Author(s) -
Rahaman Sk. Atiur,
Sahid Hossain Munshi,
Hatai Joydev,
Bandyopadhyay Subhajit
Publication year - 2021
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.202000209
Subject(s) - photoisomerization , azobenzene , photoswitch , dendrimer , supramolecular chemistry , photochemistry , chemistry , supramolecular assembly , materials science , isomerization , polymer chemistry , molecule , organic chemistry , catalysis
Transformation of light energy into chemical energy through supramolecular assemblies is a major pathway for energy harvesting in natural systems. An anionic azobenzene photoswitch assembled with a light‐absorbing dendrimer via non‐covalent interactions such as anion‐π motifs transfer the absorbed light to the bound photoswitch. The energy transfer was used for trans → cis photoisomerization of the photoswitchable system. The photoisomerization rate in the dendrimer−azobenzene assembly was found to be faster compared to the azobenzene itself.