title: Polarizability and internal charge transfer in thiophene-triphenylamine hybrid π-conjugated systems.
abstract: Extended star-shaped conjugated systems consisting of dicyanovinyl electron-acceptor units connected to a triphenylamine core by means of thiophene (T), thienylenevinylene (TV), and bithiophene (BT) conjugating spacers have been synthesized. The analysis of the electronic properties of the molecules by UV-vis absorption spectroscopy, cyclic voltammetry, and theoretical calculations shows that the electronic properties of the systems depend on the length and rigidity of the conjugating spacer.
authors.affiliation: LUNAM Université, MOLTECH-Anjou UMR CNRS 6200, Groupe Systèmes Conjugués Linéaires, University of Angers, 2 Boulevard Lavoisier, 49045 Angers, France.
authors.forename: Emilie
authors.initials: E
authors.lastname: Ripaud
authors.forename: Yoann
authors.initials: Y
authors.lastname: Olivier
authors.forename: Philippe
authors.initials: P
authors.lastname: Leriche
authors.forename: Jérôme
authors.initials: J
authors.lastname: Cornil
authors.forename: Jean
authors.initials: J
authors.lastname: Roncali