Realization of nitroaromatic chromophores with intense two-photon brightness

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Authors
Sadowski, Bartłomiej
Kaliszewska, Marzena
Clermont, Guillaume
Poronik, Yevgen M.
Blanchard-Desce, Mireille
Piątkowski, Piotr
Gryko, Daniel T.
Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
Royal Society of Chemistry
License
Creative Commons License
Creative Commons Attribution-NonCommercial 3.0 Poland License
Abstract
Strong fluorescence is a general feature of dipyrrolonaphthyridinediones bearing two nitrophenyl substituents. Methyl groups simultaneously being weakly electron-donating and inducing steric hindrance appear to be a key structural parameter that allows for significant emission enhancement, whereas Et2N groups cause fluorescence quenching. The magnitude of two-photon absorption increases if 4-nitrophenyl substituents are present while the contribution of Et2N groups is detrimental.
Description
Citation
Chem. Commun., 2023, 59, 11708 ; https://doi.org/10.1039/D3CC03347C
URI
https://open.icm.edu.pl/handle/123456789/22934
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