| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5225446 | Tetrahedron | 2009 | 5 Pages |
Abstract
We prepared a series of 1,3,6,8-tetrakis(arylethynyl)pyrenes with donor or acceptor substituents and investigated their photophysical properties. Solvent polarity hardly affected on the UV/vis spectra of all of the tetrakis(arylethynyl)pyrenes used in this study. On the other hand, electron-donating groups, NMe2 and NPh2 groups imparted fluorescence solvatochromicity to the skeleton by intramolecular charge transfer in the excited state. Furthermore, a tetrakis(arylethynyl)pyrene showed better lightfastness upon exposure to laboratory weathering using a xenon long arc lamp than coumarin.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Kazuhisa Fujimoto, Hisao Shimizu, Masaru Furusyo, Seiji Akiyama, Mio Ishida, Utako Furukawa, Toshiaki Yokoo, Masahiko Inouye,