Quenching of aromatic hydrocarbon fluorescence by cesium chloride
โ Scribed by Larry K. Patterson; Stefan J. Rzad
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 310 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Fluorescence quenching of nine aromtic hydrocarbons by cesium chloride in methmolic solution has been meassured t~Sing'pulse fluo&netrY. A log-log relationship between kq, the rate corstant for quenching by CsCI, and kS+T, the inter- system crossing rate of the fluor, appears to,be applicable to these systems. l-i& behavior is interpreted in terms of heavy atom quanchinp by.CrU_ .' . . '.
๐ SIMILAR VOLUMES
Ruorescence quenching of aromatic molecules by inorganic anions in H20-EtOH mixtures at 300 K has been studied quantitatively. A linear relationship between log k. (kq is the quenching rate constant) and AC (the free energy change in electron transfer) is obtained indicating that the &on-mduced quen
The qucnching of the eIcctronicaIly excited strrtes of organic mo!ecu!es by free radiwls such ;IS nitric oxide and oxygen was kt investigttd in any detail by Bawzn and Net&f [ 11. and Itas since then received incrrxsing attention as attempts have been made to un-Axstand this probicm from both the th