| Literature DB >> 12511039 |
Mayuko Uda1, Takuo Mizutani, Junpel Hayakawa, Atsuya Momotake, Masashi Ikegami, Ritsuko Nagahata, Tatsuo Arai.
Abstract
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.Entities:
Year: 2002 PMID： 12511039 DOI： 10.1562/0031-8655(2002)076<0596:posdtn>2.0.co;2
Source DB: PubMed Journal: Photochem Photobiol ISSN： 0031-8655 Impact factor: 3.421