The fluorescence from the second excited singlet state of pyrene and 3.4~benzpyrene in the vapour phase has been observed. The effect of inert gas, temperature and excitation frequency has been investigated. The estimated rate constants for the internal conversion and the reverse process far pyrene
โฆ LIBER โฆ
Vapor-phase fluorescence spectra from the second excited singlet state of pyrene and its derivatives
โ Scribed by Hiroaki Baba; Masakatsu Aoi
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 648 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0022-2852
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An anomalous fluorcsccnce near 380 nm is dctcctcd from heptanc soluuons on naphtho[ l,S-cd][ 1,2,6] thrsdrazmc (I), 6,7drhydroaccnaphthoI5.6-cd] [ I,?,61 thiadrxonc (2), Its unsaturated dcnvatrvc (4). and the tctrachloro denvattvc of I (3), when these substances arc excrtcd Into theSo -S2 absorpuon