title: Synthesis of Ring-Fused Pyridinium Salts by Intramolecular Nucleophilic Aromatic Substitution Reaction and Their Optoelectronic Properties.
abstract: The synthesis of nitrogen cation-doped polycyclic aromatic hydrocarbons (PAHs) having a variety of counteranions is reported via the trimethylsilyl (TMS)-promoted intramolecular aromatic nucleophilic substitution (SNAr) reaction of fluoroarenes and pyridine groups. The electrochemical properties and optical properties of the obtained nitrogen cation-doped PAHs were studied in detail, clarifying that they have low-lying LUMO levels and good emission properties derived from the incorporation of planar N-arylpyridinium moieties.
authors.affiliation: Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Asanuma
authors.affiliation: Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Eguchi
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Nishiyama
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.
authors.forename: Ikuyoshi
authors.initials: I
authors.lastname: Tomita
authors.affiliation: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan.
authors.forename: Shinsuke
authors.identifier: 0000-0002-9867-1210
authors.initials: S
authors.lastname: Inagi