title: Synthesis of green and blue fluorescent ladder-type conjugated imidazolium compounds.
abstract: The synthetic route to ladder-type conjugated imidazolium compounds consisting of Suzuki coupling, chlorination, and intramolecular cyclization reactions was developed. The optical properties of materials and theoretical calculations were investigated to demonstrate that methylene- and ethylene-bridged imidazolium compounds show green and blue fluorescence, respectively. The coordination ability of the counter anion had an influence on the solubility and fluorescence quantum yield of the compounds.
authors: Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan. takagi.koji@nitech.ac.jp
authors: Koji
authors: K
authors: Takagi
authors: Yohei
authors: Y
authors: Ito
authors: Kazuma
authors: K
authors: Kusafuka
authors: Masanori
authors: M
authors: Sakaida