2002年1月
Photoisomerization of Stilbene Dendrimers: The Need for a Volume-Conserving Isomerization Mechanism
Photochemistry and photobiology
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- 巻
- 76
- 号
- 6
- 開始ページ
- 596
- 終了ページ
- 605
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
Highly branched stilbene dendrimers were synthesized and their photochemical behavior was studied. Even the stilbene dendrimer with molecular weight over 6500 underwent trans-cis isomerization in the excited singlet state within the lifetime of 10 ns. The photoisomerization of C=C double bond of stilbene dendrimers in the excited state may proceed by a volume-conserving novel mechanism such as hula-twist rather than conventional 180 degrees rotation around the C=C double bond based on fluorescence and isomerization experiments.
- ID情報
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- ISSN : 0031-8655