Strong isotope effect on the intermolecular exchange integral of excited triplet-state dimers
Autor: | T.E. Altman, W.G. Breiland, J.S. Voris |
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Rok vydání: | 1979 |
Předmět: | |
Zdroj: | Chemical Physics Letters. 67:30-35 |
ISSN: | 0009-2614 |
DOI: | 10.1016/0009-2614(79)87100-6 |
Popis: | High-resolution phosphorescence—microwave double resonance (PMDR) and optically detected magnetic resonance techniques have yielded two independent measurements of the nearest-neighbor excited-state exchange matrix element in dimers of 1,2,4,5-tetrachlorobenzene. Both experiments yield a value (0.07 cm −1 ) smaller than the value reported for exciton systems (0.34 cm −1 ), indicating a strong violation of the ideal mixed crystal concept. |
Databáze: | OpenAIRE |
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