title: Luminescent polymer consisting of 9,12-linked o-carborane.
abstract: The synthesis of novel luminescent polymer containing p-phenylene-ethynylene and 9,12-linked o-carborane units alternately in the main chain is reported. The obtained polymer exhibits intense blue photoluminescence, providing the first insights into the optical properties of a 9,12-disubstituted o-carborane dye. π-Conjugated substituent at 9 and/or 12-positions in o-carborane is electrically independent, and both the HOMO and the LUMO levels slightly increase, whereas LUMO of the π-conjugated substituent at 1 and/or 2-positions in o-carborane decrease. Thus, it is deduced that polymers consisting of the 9,12-linked o-carborane unit are able to be applied as light-emitting materials.
authors.affiliation: Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan.
authors.forename: Masato
authors.initials: M
authors.lastname: Tominaga
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Morisaki
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Chujo
mesh_terms: D001896:Boron Compounds / Q000737:chemistry*; D049449:Luminescence; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D001896:Boron Compounds; D011108:Polymers
keywords: o-carborane; photoluminescence; π-conjugation