Delayed fluorescence S2 → S0 of azulene in isopentane,due to hetero-triplet—triplet annihilation of 3azulene* and 3fluoranthene* |
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| Authors: | Bernhard Nickel |
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| Institution: | Abteilung Spektroskopie, Max-Planck-Institut für Biophysikalische Chemie, D-3400 Göttingen, Germany |
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| Abstract: | The lowest triplet state of azulene, T1(Az), can be populated efficiently by triplet energy transfer from the lowest triplet state of fluoranthene, T1(F1). In isopentane at temperatures 120 K ? T ? 193 K a delayed fluorescence S2(Az) → S0(Az) is found, caused by hetero-triplet—triplet annihilation T1(Az) + T1(Fl) → S2(Az) + S0(F1). |
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