title: o-Carborane-based biphenyl and p-terphenyl derivatives.
abstract: The synthesis and properties of biphenyl- and p-terphenyl-fused o-carboranes are described. Aryl rings in the biphenyl and p-terphenyl skeletons are highly coplanar because of the presence of the o-carborane unit. o-Carborane exhibits an electron-withdrawing character via the inductive effect, resulting in a decrease in both the HOMO and LUMO levels of oligophenyls without causing electronic perturbation.
authors.affiliation: Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan), Fax: (+81) 75-383-2607. ymo@chujo.synchem.kyoto-u.ac.jp.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Morisaki
authors.forename: Masato
authors.initials: M
authors.lastname: Tominaga
authors.forename: Takuya
authors.initials: T
authors.lastname: Ochiai
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Chujo
keywords: benzocarborane; biphenyl; carboranes; electron-deficient compounds; p-terphenyl