New aspects of fluorescence quenching by molecular oxygen
β Scribed by Kikuchi, Koichi; Sato, Chika; Watabe, Masanori; Ikeda, Hiroshi; Takahashi, Yasutake; Miyashi, Tsutomu
- Book ID
- 127056913
- Publisher
- American Chemical Society
- Year
- 1993
- Tongue
- English
- Weight
- 590 KB
- Volume
- 115
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
ANtract--The fluorescence quenching of polystyrene by oxygen at room temperature was investigated. The diffusion coefficient of oxygen in polystyrene films was taken as 3.1 x 10 -7 cm2/sec; the energy migration coefficient of polystyrene in the excited singlet state was estimated as 6 x 10 6 cm2/sec
pulsed nitrogen laser is appiied for studying the quenching of aromatic hydrocarbons fluorescence by oxygen. In non-polar solvents the process induces intersystem crossing to the triplet state with a quantum yield of unity. Effects of solvent polarity suggest that the interaction between Sl and O2(