title: Redox- and protonation-induced fluorescence switch in a new triphenylamine with six stable active or non-active forms.
abstract: The synthesis, photophysical and electrochemical properties as well as theoretical calculation studies of a newly designed triphenylamine derivative are described. This original compound displays one neutral form, three oxidized forms, and two protonated forms with distinct photophysical characteristics. The interplay of the emission with the protonation or the redox state (electrofluorochromism) has been explored and an on-off-on-off fluorescence switching was observed in the case of oxidation and an on-on-off fluorescence switching in the case of protonation.
authors.affiliation: PPSM, CNRS UMR8531, ENS Cachan, 61 Avenue du Président Wilson, 94235 Cachan (France), Fax: (+33) 1-47402454.
authors.forename: Cassandre
authors.initials: C
authors.lastname: Quinton
authors.forename: Valérie
authors.initials: V
authors.lastname: Alain-Rizzo
authors.forename: Cécile
authors.initials: C
authors.lastname: Dumas-Verdes
authors.forename: Fabien
authors.initials: F
authors.lastname: Miomandre
authors.forename: Gilles
authors.initials: G
authors.lastname: Clavier
authors.forename: Pierre
authors.initials: P
authors.lastname: Audebert
keywords: electrofluorochromism; fluorescence; molecular modeling; protonation; redox chemistry; triphenylamine