Synthesis, Photophysical Properties, and Aromaticity of Pyrazine-Fused Tetrazapentalenes
Résumé
Pyrazine-fused 1,2,6,6a-tetrazapentalenes (Py-TeAP) are zwitterionic tricyclic compounds exhibiting an original pattern with four consecutive nitrogen atoms. They were obtained by a challenging cyclization through the formation of a N−N bond under thermolytic conditions. Ten derivatives were synthesized, and the original sca old of PyTeAP was confirmed by single-crystal X-ray di raction analysis of one derivative. Examination of their photophysical properties in solution revealed blue fluorescence with λ em = 416−426 nm. Theoretical investigations of the aromaticity in these compounds through magnetic criteria evidenced the presence of a dominant 14-electron circuit at the periphery. pubs.acs.org/joc Article
Domaines
Chimie organique| Origine | Fichiers produits par l'(les) auteur(s) |
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