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Updated: Dec 26, 2025

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Photophysical transformations induced by chemical substitution to salicylaldimines
Cristina A Barboza1, Pawel Gawrys1, Marzena Banasiewicz1
1Physics Institute, Polish Academy of Sciences, Al. Lotników 32/46, Warsaw, Poland. crissetubal@ifpan.edu.pl majdo007@wp.pl.
Abstract:
A series of different electron-deficient aromatic substituents were used to investigate the role of the electron-acceptor strength on the photophysical properties of salicylaldimine derivatives. These molecules were synthesised and characterised through X-ray diffraction, absorption and emission spectroscopies. Their photochemical reaction mechanisms and properties were explored with the aid of ab initio methods of quantum chemistry. Our results allow us to clarify the dependence of the multiple emission bands on the polarity of the solvent and on the substitution of electron donating and accepting groups to the salicylaldimine core.
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