The excitation dependence of the phosphorescence of phenazine in ethanol at 77k
β Scribed by A.J. Kallir; G.W. Suter; U.P. Wild
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 85 KB
- Volume
- 31-32
- Category
- Article
- ISSN
- 0022-2313
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π SIMILAR VOLUMES
77 K acre invsstlgated by opt~nl absorption and ESR mcasuremcnts over B wldc range or conccntntions. Abrupt changes of yield and spectral parameters were obscrvcd between I Z and Ia mol% etkmol where a structural tinsICon of the mbture had been reported.
The phosphorcsccncc spectrum of xdnthonc cmbeddcd in a polycrystallinc matrix of n-hcxanc has been measured at 77 and 4.2 K. Dramatic diffcrcnccs in spectral features and triplet lifetime arc evident at these two tempcraturcs. The cmitting species at 4.2 K is assigned as predominantly 3(zz\*) in cha