title: Electronic coupling mediated by furan, thiophene, selenophene and tellurophene in a homologous series of organic mixed valence compounds.
abstract: Charge delocalization in the mixed-valent monocationic forms of phenothiazine-decorated chalcogenophenes is explored by cyclic voltammetry, optical absorption and EPR spectroscopy. Single units of furan, thiophene, selenophene and tellurophene are found to mediate electronic coupling between the phenothiazines attached to their 2- and 5-positions roughly equally well. Electronic communication seems to occur mostly through the butadiene-like backbone of the chalcogenophenes.
authors.affiliation: Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland. oliver.wenger@unibas.ch.
authors.forename: Ann Christin
authors.initials: AC
authors.lastname: Jahnke
authors.forename: Mariana
authors.initials: M
authors.lastname: Spulber
authors.forename: Markus
authors.initials: M
authors.lastname: Neuburger
authors.forename: Cornelia G
authors.initials: CG
authors.lastname: Palivan
authors.forename: Oliver S
authors.initials: OS
authors.lastname: Wenger