title: Synthesis and optical properties of stable gallafluorene derivatives: investigation of their emission via triplet states.
abstract: We designed and synthesized air- and moisture-stable gallafluorenes in which two benzene rings were bridged by the four-coordinate gallium atoms. The series of gallafluorenes were prepared by introducing electron-donating and -withdrawing groups through Suzuki-Miyaura coupling reactions. The gallafluorenes showed unique emissions via their triplet states in the presence of B(C6F5)3. These emissions were obtained via the triplet exciplex of gallafluorene and B(C6F5)3.
authors.affiliation: Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Kazuo
authors.initials: K
authors.lastname: Tanaka
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Chujo