title: Thia-bridged triarylamine heterohelicene radical cations as redox-driven molecular switches.
abstract: The first example of one-electron oxidation of thia-bridged triarylamine heterohelicenes to the corresponding exceptionally stable radical cations, fully characterized, as hexafluoroantimonate salts, by means of UV-Vis, EPR, ENDOR, density functional theory calculations and X-ray analyses, is reported. Chemical and electrochemical reversible redox processes are solidly demonstrated.
authors.affiliation: Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy. stefano.menichetti@unifi.it caterina.viglianisi@unifi.it.
authors.forename: S
authors.initials: S
authors.lastname: Menichetti
authors.forename: S
authors.initials: S
authors.lastname: Cecchi
authors.forename: P
authors.initials: P
authors.lastname: Procacci
authors.forename: M
authors.initials: M
authors.lastname: Innocenti
authors.forename: L
authors.initials: L
authors.lastname: Becucci
authors.forename: L
authors.initials: L
authors.lastname: Franco
authors.forename: C
authors.initials: C
authors.lastname: Viglianisi