title: Unusually efficient trans-to-cis photoisomerization of diphenylbutadiene dendrimers in water.
abstract: A diphenylbutadiene-cored dendrimer exhibited a remarkably high quantum yield for trans-to-cis photoisomerization in aqueous solution. Analysis of the fluorescence lifetimes and the wavelength-dependent excitation spectra suggested that the core butadiene adopts multiple conformations, one or several of which is sufficiently distorted to undergo preferential photoisomerization.
authors.affiliation: Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Miura
authors.forename: Atsuya
authors.initials: A
authors.lastname: Momotake
authors.forename: Yoko
authors.initials: Y
authors.lastname: Kanna
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Nishimura
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Arai