title: A Typical Metal-Ion-Responsive Color-Tunable Emitting Insulated π-Conjugated Polymer Film.
abstract: We report the synthesis of an insulated π-conjugated polymer containing 2,2'-bipyridine moieties as metal coordination sites. Metal coordination to the polymer enabled easy and reversible tuning of the luminescent color without changes to the main chain skeleton. The permethylated α-cyclodextrin (PM α-CD)-based insulation structure allowed the metalated polymers to demonstrate efficient emission even in the solid state, with identical spectral shapes to the dilute solutions. In addition, the coordination ability of the metal-free polymer was maintained in the solid state, resulting in reversible changes in the luminescent color in response to the metal ions. The synthesized polymer is expected to be suitable for application in recyclable luminescent sensors to distinguish different metal ions.
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.
authors.forename: Takuro
authors.initials: T
authors.lastname: Hosomi
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Masai
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.
authors.forename: Tetsuaki
authors.initials: T
authors.lastname: Fujihara
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Tsuji
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan. terao@scl.kyoto-u.ac.jp.
authors.forename: Jun
authors.initials: J
authors.lastname: Terao
keywords: cyclodextrins; fluorescence; luminescence; polymers; supramolecular chemistry