title: Syntheses and spectroscopic studies of spirobifluorene-bridged bipolar systems; photoinduced electron transfer reactions.
abstract: Some 9,9'-spirobifluorene-bridged bipolar systems 1-3 containing 1,3,4-oxadiazole-conjugated oligoaryl and triarylamine moieties have been synthesized, in which 1 exhibits remarkable solvent-polarity dependent fluorescence properties due to a highly efficient photoinduced electron transfer reaction.
authors.affiliation: Department of Chemistry, National Taiwan University, 106 Taipei, Taiwan, ROC.
authors.forename: Yuh-Yih
authors.initials: YY
authors.lastname: Chien
authors.forename: Ken-Tsung
authors.initials: KT
authors.lastname: Wong
authors.forename: Pi-Tai
authors.initials: PT
authors.lastname: Chou
authors.forename: Yi-Ming
authors.initials: YM
authors.lastname: Cheng