Radiative lifetimes of the lowest triplet states are determined for several aromatic hydrocarbons from the measured fluorescence quantum yield, phosphorescence quantum yield, and lifetime of phosphorescence. It is found that the radiative lifetime is considerably Iorger for pcrdeuterated naphthalen
Coupling strengths for intramolecular non-radiative transitions in aromatic hydrocarbons
✍ Scribed by Y. Fujimura; T. Nakajima
- Book ID
- 103009665
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 365 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
An approximate method is presented for evaluating reduced vibrational coupling strengths for non-radiative transitions in aromatic hydrocarbons. Magnitudes of the coupling strength in the low-temperature limit are estimated for the intramolecular non-radiative transitions 'BzU -'Alg in benzene and 'Bzu -'Ag, 'B1, -'Ag. and 'B IU -'B 2u in naphthalenc.
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The urnmuon amphtudr (tle\p(-IHz)li) IS calculated as 3 reverse Laplacr transformation of the resolvenr (II(E-\_-'I~~ lllc dctermmzmtal perturbntlon e\panslon of Baker and Sasakawa 1s used to glvc the poles and residues of the resolvenr The mtcrsystcm crossmg rate IS calculated between 'A" and 3A' s