Issue 78, 2023

Realization of nitroaromatic chromophores with intense two-photon brightness

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.

Graphical abstract: Realization of nitroaromatic chromophores with intense two-photon brightness

Supplementary files

Article information

Article type
Communication
Submitted
11 Jul 2023
Accepted
04 Sep 2023
First published
08 Sep 2023
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2023,59, 11708-11711

Realization of nitroaromatic chromophores with intense two-photon brightness

B. Sadowski, M. Kaliszewska, G. Clermont, Y. M. Poronik, M. Blanchard-Desce, P. Piątkowski and D. T. Gryko, Chem. Commun., 2023, 59, 11708 DOI: 10.1039/D3CC03347C

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