The viscosity dependence of the fluorescence quantum yield of mesoionics
β Scribed by Ted R. Evans
- Publisher
- Elsevier Science
- Year
- 1982
- Weight
- 237 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0047-2670
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Fluorescence intensities and lifetimes of 1, I '-diethyl-2,2'-cyanine chloride( pseudoisocyanine) at I .O x 1 O-\* M in glycerol have been measured in the temperature range 84-298 K. Comparison with previous results shows that the solution consists of dye monomers. Arrhenius plots yield two activat
The fluorescence and the photoisomerization quantum yields of MC540 have been measured in glycerol-ethanol mixtures. These values are shown to be viscosity dependent. A decrease in the possibilities of dye movement favours the fluorescence over the process of photoisomerization. The production of si
The change in fluorescence quantum yield for indole 2s a function of ercitition wavelengg between 250 and 220 run is found to vary with the static dielectric constant of various alcohol-\vater mixtures at 296 K. The supports rhe intermediacy of I CTTS sbte in tile photoionization process.