Tetracarboxy-Functionalized [8]-, [10]-, [12]-, and [14]Phenacenes
Résumé
Mono- and diglyoxylation of chrysene and naphthalene leads to Perkin reactants that yield bismaleates, which efficiently photocyclize to elongated phenacenetetracarboxylic esters. Their band gaps remain significantly larger than the value postulated for polyphenacene. The reaction with α-branched amines gives the corresponding imides, which are significantly stronger electron acceptors than the esters. The obtained [12]- and [14]phenacenes are the longest [n]phenacenes that have been synthesized to date.
Domaines
Matériaux| Origine | Fichiers produits par l'(les) auteur(s) |
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