Distinction of the delayed fluorescences S1 → S0 And S2 → S0 of pyrene by selective quenching Of S1 → S0 |
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| Authors: | Bernhard Nickel Gabriele Roden |
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| Institution: | Abteilung Spektroskopie. Max-Planck-lnstitut für biophysikalische Clhemie, D-3400 Göttingen, West Germany |
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| Abstract: | In the spectrum of the delayed fluorescence (DF) of pyrene, caused by triplet-triplet annihilation T1 + T1 → Sn + So (n = 1,2), a strong DF S1 → So and a very weak DF S2 → s0 are observed. The DF S1→ So is quenched selectively by compounds like N-diethylanine or triethylamine which do not quench T1 of pyrene. |
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