The absorption and polarization spectra from the first excited singlet state of pyrene and the absorption spectrum of the pyrene excimer are presented. These results were obtained by laser flash spectroscopy using a frequency doul bled ruby laser pulse of 6 nanoseconds halfwidth. A qualitative prel
Photonics of Biopolymers || Pyrene Monomers and Excimers in Membranes
β Scribed by Vekshin, Nikolai L.
- Book ID
- 120167677
- Publisher
- Springer Berlin Heidelberg
- Year
- 2002
- Weight
- 750 KB
- Category
- Article
- ISBN
- 3662049473
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## Abstract Emission spectra and decay times of the fluorescence under the excitation of various energies were measured in pyrene crystals. At liquid nitrogen temperature, a new excimer emission was found under 390 nm excitation, and its peak shifts a little to the high energy in comparison with th
The monomer and excimer fluorescence polarization of 4,9-disubstituted pyrenes with molecular long axes nearly perpendicular to the pyrene skeleton were measured in a nematic liquid crystal. By comparison with unsubstituted pyrene it is found that the excimer transition moment is oriented parallel t