Synthesis and Photochemical Characteristics of Amphiphilic Enediyne Dendrimers

被引:4
|
作者
Yoshimura, Nao [1 ]
Momotake, Atsuya [1 ]
Shinohara, Yoshihiro [2 ]
Takahashi, Kayori [3 ]
Nagahata, Ritsuko [3 ]
Nishimura, Yoshinobu [1 ]
Arai, Tatsuo [1 ]
机构
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan
[2] Univ Tsukuba, Res Facil Ctr Sci & Technol, Tsukuba, Ibaraki 3058577, Japan
[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
关键词
STILBENE DENDRIMERS; PHOTOISOMERIZATION; ISOMERIZATION;
D O I
10.1246/bcsj.82.723
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Amphiphilic enediyne-cored dendrimers were prepared as pure cis and trans isomers. All dendrimers were flourescent to give fluorescence quantum yield of 0.10-0.64, and they underwent efficient photochemical isomerization with quantum yields of 0.22-0.50 in THF. In water, other photochemical reactions took place. Fluorescence or triplet lifetimes were also strongly affected by dendrimer generation and solvent polarity. The structure-photochemical property relationship of new photoresponsive dendrimers is discussed.
引用
收藏
页码:723 / 729
页数:7
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