title: Planarized star-shaped oligothiophenes with enhanced pi-electron delocalization.
abstract: [structure: see text] Planarized star-shaped oligothiophenes 1 have been synthesized by connecting short-chain oligothiophenes on a benzo[1,2-b:3,4-b':5,6-b' ']trithiophene central core. Their electrochemical and optical properties have been characterized by cyclic voltammetry and UV-visible spectroscopy, respectively. These results associated with theoretical calculations show the advantage of benzotrithiophene as a central core in terms of pi-electron delocalization.
authors.affiliation: Groupe Systèmes Conjugués Linéaires, IMMO, UMR CNRS 6501, Université d'Angers, 2 Bd Lavoisier, F-49045 Angers, France.
authors.forename: Yohann
authors.initials: Y
authors.lastname: Nicolas
authors.forename: Philippe
authors.initials: P
authors.lastname: Blanchard
authors.forename: Eric
authors.initials: E
authors.lastname: Levillain
authors.forename: Magali
authors.initials: M
authors.lastname: Allain
authors.forename: Nicolas
authors.initials: N
authors.lastname: Mercier
authors.forename: Jean
authors.initials: J
authors.lastname: Roncali