title: Synthesis of 2-Azulenyltetrathiafulvalenes by Palladium-Catalyzed Direct Arylation of 2-Chloroazulenes with Tetrathiafulvalene and Their Optical and Electrochemical Properties.
abstract: Tetrathiafulvalene (TTF) derivatives with 2-azulenyl substituents 5-11 were prepared by the palladium-catalyzed direct arylation reaction of 2-chloroazulenes with TTF in good yield. Photophysical properties of these compounds were investigated by UV-vis spectroscopy and theoretical calculations. Redox behavior of the novel azulene-substituted TTFs was examined by using cyclic voltammetry and differential pulse voltammetry, which revealed their multistep electrochemical oxidation and/or reduction properties. Moreover, these TTF derivatives showed significant spectral change in the visible region under the redox conditions.
authors.affiliation: Graduate School of Science and Technology, Shinshu University , Matsumoto 390-8621, Japan.
authors.forename: Taku
authors.identifier: 0000-0001-8176-2389
authors.initials: T
authors.lastname: Shoji
authors.affiliation: Graduate School of Science and Technology, Shinshu University , Matsumoto 390-8621, Japan.
authors.forename: Takanori
authors.initials: T
authors.lastname: Araki
authors.affiliation: Graduate School of Science and Technology, Shinshu University , Matsumoto 390-8621, Japan.
authors.forename: Shuhei
authors.initials: S
authors.lastname: Sugiyama
authors.affiliation: Graduate School of Science and Technology, Shinshu University , Matsumoto 390-8621, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Ohta
authors.affiliation: Graduate School of Science and Technology, Hirosaki University , Hirosaki 036-8561, Japan.
authors.forename: Ryuta
authors.initials: R
authors.lastname: Sekiguchi
authors.affiliation: Graduate School of Science and Technology, Hirosaki University , Hirosaki 036-8561, Japan.
authors.forename: Shunji
authors.initials: S
authors.lastname: Ito
authors.affiliation: Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University , Matsuyama 790-8577, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Okujima
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University , Sendai 980-8578, Japan.
authors.forename: Kozo
authors.initials: K
authors.lastname: Toyota