%0 Journal Article %1 Schulz_2021 %A Schulz, Alexander %A Würthner, Frank %D 2021 %I Wiley %J Angew. Chem. Int. Ed. %K myown %N 2 %R 10.1002/anie.202114667 %T Folding-induced Fluorescence Enhancement in a Series of Merocyanine Hetero-Folda-Trimers %U https://doi.org/10.1002%2Fanie.202114667 %V 61 %X Many dyes suffer from fast non-radiative decaypathways, thereby showing only short-lived excited states andweak photoluminescence. Here we show a pronounced fluo-rescence enhancement for a weakly fluorescent merocyanine(MC) dye by being co-facially stacked to other dyes in hetero-folda-trimer architectures. By means of fluorescence spectros-copy (lifetime, quantum yield) the fluorescence enhancementwas explained by the rigidification of the emitting chromo-phore in the defined foldamer architecture and the presence ofa non-forbidden lowest exciton state in H-coupled hetero-aggregates. This folding-induced fluorescence enhancement(FIFE) for specific sequences ofp-stacked dyes points ata viable strategy toward improved fluorophores that relates tothe approach used by nature in the green fluorescent protein(GFP).

@article{Schulz_2021, abstract = {Many dyes suffer from fast non-radiative decaypathways, thereby showing only short-lived excited states andweak photoluminescence. Here we show a pronounced fluo-rescence enhancement for a weakly fluorescent merocyanine(MC) dye by being co-facially stacked to other dyes in hetero-folda-trimer architectures. By means of fluorescence spectros-copy (lifetime, quantum yield) the fluorescence enhancementwas explained by the rigidification of the emitting chromo-phore in the defined foldamer architecture and the presence ofa non-forbidden lowest exciton state in H-coupled hetero-aggregates. This folding-induced fluorescence enhancement(FIFE) for specific sequences ofp-stacked dyes points ata viable strategy toward improved fluorophores that relates tothe approach used by nature in the green fluorescent protein(GFP).}, added-at = {2022-01-17T10:06:31.000+0100}, author = {Schulz, Alexander and Würthner, Frank}, biburl = {https://www.bibsonomy.org/bibtex/2376b2e6aa97cf5253a1dce817cc877fd/wuerthner_group}, doi = {10.1002/anie.202114667}, interhash = {b625161d754efad10f6eb6eef7ecb39c}, intrahash = {376b2e6aa97cf5253a1dce817cc877fd}, journal = {Angew. Chem. Int. Ed.}, keywords = {myown}, month = nov, number = 2, publisher = {Wiley}, timestamp = {2022-01-17T10:08:37.000+0100}, title = {Folding-induced Fluorescence Enhancement in a Series of Merocyanine Hetero-Folda-Trimers}, url = {https://doi.org/10.1002%2Fanie.202114667}, volume = 61, year = 2021 }