title: Superextended Tetrathiafulvalene: Synthesis, Optoelectronic Properties, Fullerenes Complexation, and Photooxidation Study.
abstract: Superextended tetrathiafulvalene compounds were prepared by the substitution of gem-dichlorovinylene with 1,2-benzenedithiol. This strategy allowed for the efficient synthesis of a highly π-extended 9,10-bis(benzo-1,3-dithiol-2-ylidene)-9,10-dihydroanthracene (sExTTF) moiety, which exhibits an intense light absorption in the visible spectrum and a reversible oxidation process. A macrocyclic host for fullerenes containing two sExTTF units was synthesized. Complexation studies revealed that fullerenes promote the photooxidation of the 1,3-dithiolylidene bond. This grants new insights into the nature of the low-energy band that appeared in several reports on fullerene complexation with hosts containing the 1,3-dithiolylidene moiety.
authors.affiliation: Département de Chimie and Centre de Recherche sur les Matériaux Avancés (CERMA), Université Laval, 1045 Avenue de la Médecine, Québec City, Québec G1V 0A6, Canada.
authors.forename: Jean-Benoît
authors.initials: JB
authors.lastname: Giguère
authors.affiliation: Département de Chimie and Centre de Recherche sur les Matériaux Avancés (CERMA), Université Laval, 1045 Avenue de la Médecine, Québec City, Québec G1V 0A6, Canada.
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Morin