title: How do redox groups behave around a rigid molecular platform? Hexa(ferrocenylethynyl)benzenes and their "electrostatic" redox chemistry.
abstract: A new family of hexakis(ferrocenylethynyl)benzenes was synthesized by Negishi coupling from ethynylferrocenes and C(6)Br(6) and can be reversibly oxidized to stable hexaferrocenium salts (see picture, Ar(F)=[3,5-C(6)H(3)(CF(3))(2)]). Their cyclic voltammograms show a single six-electron wave, three distinct two-electron waves, or a cascade of six single-electron waves, depending on the electrolyte counterion and number of methyl substituents on the ferrocenyl groups.
authors.affiliation: Institut des Sciences Moléculaires, UMR CNRS No.5255, Université Bordeaux 1, 33405 Talence, France.
authors.forename: Abdou K
authors.initials: AK
authors.lastname: Diallo
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Daran
authors.forename: François
authors.initials: F
authors.lastname: Varret
authors.forename: Jaime
authors.initials: J
authors.lastname: Ruiz
authors.forename: Didier
authors.initials: D
authors.lastname: Astruc