Peer-Reviewed Journal Details

Mandatory Fields

Eisenberger, H.,Nickel*, B.,Ruth, A. A.,Steer, R. P.;

1996

March

Journal of The Chemical Society-Faraday Transactions

Photophysical triplet state processes of 4-H-1-benzopyrane-4-thione in a perfluoroalkane .2. Delayed S-2->S-0 fluorescence due to triplet-triplet annihilation

Validated

()

Optional Fields

92

5

741

746

With 4-H-1-benzopyrane-4-thione (BPT) in perfluoro-1,3-dimethylcyclohexane a delayed monomer fluorescence S-2 --> S-0 due to triplet-triplet annihilation (TTA) is observable. The probability of generating an S-2 state by the annihilation of two triplet states is ca. 0.03. The generation of S-2 by TTA can be interpreted as a special case of Forster energy transfer. There is no indication of a delayed fluorescence from an upper excimer state.With 4-H-1-benzopyrane-4-thione (BPT) in perfluoro-1,3-dimethylcyclohexane a delayed monomer fluorescence S-2 --> S-0 due to triplet-triplet annihilation (TTA) is observable. The probability of generating an S-2 state by the annihilation of two triplet states is ca. 0.03. The generation of S-2 by TTA can be interpreted as a special case of Forster energy transfer. There is no indication of a delayed fluorescence from an upper excimer state.

0956-50000956-5000

Grant Details