It Iwbeen found that fhxorescence quenchingof 9,lOdibromo-, 9,lOdichloro-and 9,1Odicyano-anthracenc by aromatic hydrocarbons is due not to singlet-triplet energy transfer but to donor-acceptor interactions leading to the formation of short-lived cscipbses. The 9,lOdics~noanthmcene cscipleses fhxorcj
Triplet-singlet energy transfer in fluid solution
β Scribed by Vaudo, Anthony F.; Hercules, David M.
- Book ID
- 118224793
- Publisher
- American Chemical Society
- Year
- 1970
- Tongue
- English
- Weight
- 894 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
The emission spectra of polyaeenaphthylene (PA&T) and polyvinyluaphthalene (PVN) tihus and solutions have heen compared at room temperature and 77Β°K. In organic glasses at 77'K, normal fluoresceuee and phosphorescence are observed for both polymers. Quenching of PAcN phosphorescence by piperylene in
~aet--The etfieiency of transfer from the triplet of polymethylvinylketone (PMVK) to naphthalene has been measured at 77Β°K. The critical distance of transfer according to Hirayama is 11.3 A. This is the usual value of Ro for exchange interaction without migration. Singiet energy transfer from the po