Ln the spectrum of the delayed fluorescence (DF) of pyrene, caused by triplet-triplet anndulation Tt + Tt -, Sn + SO (II = 1.2). a strong DT St -r SO and a very weak DF Sz \* SO are observed. The DF S1 -t SO IS quenched seletively by cornpounds hhe Nðylaniline or trrethylamme which do not quench
Delayed S1→S0 AND S2→S0 fluorescence, delayed excimer fluorescence, and phosphorescence from biphenylene
✍ Scribed by Joachim Hertzberg; Bernhard Nickel
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 801 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0301-0104
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Weak fluorescence from biphenylene has been observed in some solvents [A max: 480 IUT!, Qf" 1.0 {\* 0.3) X 104} ctt 350 nm and 20"Cf. The fluorescence is assigned to Sz tL Lb) -t So ('A) by means of the fiuorescence polarizrttion method. The Sz fluorescence in cyc!ohexane was ~~ve~en~h-dependent-Rap
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