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

被引：24

作者：

Eisenberger, H

Nickel, B

Ruth, AA

Steer, RP

机构：

[1] MAX PLANCK INST BIOPHYS CHEM, ABT SPEKTROSKOPIE & PHOTOCHEM KINET, D-37077 GOTTINGEN, GERMANY

[2] UNIV SASKATCHEWAN, DEPT CHEM, SASKATOON, SK S7N 0W0, CANADA

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1996年 / 92卷 / 05期

关键词：

D O I：

10.1039/ft9969200741

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：741 / 746

页数：6

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