Unusually efficient trans-to-cisphotoisomerization of diphenylbutadiene dendrimers in waterElectronic supplementary information (ESI) available: Experimental procedures and analytical and spectroscopic data. See DOI: 10.1039/c1pp05212h.
- Resource Type
- Article
- Authors
- Miura, Yousuke; Momotake, Atsuya; Kanna, Yoko; Nishimura, Yoshinobu; Arai, Tatsuo
- Source
- Photochemical & Photobiological Sciences. Oct2011, Vol. 10 Issue 10, p1524-1526. 3p.
- Subject
- *PHOTOISOMERIZATION
*BUTADIENE
*DENDRIMERS
*COMPOSITION of water
*SPECTRUM analysis
*QUANTUM chemistry
*WAVELENGTHS
- Language
- ISSN
- 1474-905X
A diphenylbutadiene-cored dendrimer exhibited a remarkably high quantum yield for trans-to-cisphotoisomerization 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. [ABSTRACT FROM AUTHOR]