info:eu-repo/semantics/article
Simple dissymmetrical and asymmetrical Tröger's bases: Photophysical and structural characterization
Fecha
2020-05Registro en:
Trupp, Leandro Julián; Bruttomesso, Andrea Claudia; Barja, Beatriz Carmen; Simple dissymmetrical and asymmetrical Tröger's bases: Photophysical and structural characterization; Royal Society of Chemistry; New Journal of Chemistry; 44; 26; 5-2020; 10973-10981
1144-0546
CONICET Digital
CONICET
Autor
Trupp, Leandro Julián
Bruttomesso, Andrea Claudia
Barja, Beatriz Carmen
Resumen
Despite their continuously growing preparation and applications in the last decades, the photophysical properties of Tröger’s bases (TBs) with small substituents have not been analyzed. We synthetized three dissymmetrical TBs with amino, isocyano and formamido groups and a new asymmetrical TB with one amino and one isocyano group and studied their absorption and emission properties and solvatochromic effects. An intramolecular charge transfer (ICT) state was found for the isocyano containing derivatives, associated to the isocyano acceptor group and the nitrogen donor atom in the central diazocinic core. NMR and IR spectroscopy were also analyzed, demonstrating the communication between both ends of the TBs.