The quantum yields of sensitized biacetyl phosphorescence emission have been determined for S02-Fiacetyl-C02, SOZ-biacetyl-Nz, and SO\*-biacetyl-CO mixtures irradiated at 2875 A Series of experiments were made at various SO\*, biacetyl, and added-gas concentrations (up to 4 X The kinetic data show a
Phosphorescence of biacetyl sensitized by benzene in gas phase pulse radiolysis
β Scribed by Yoshihiko Hatano; Satoshi Takao; Takumi Ueno
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 342 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The phophorescence of bketyl induced by M energy transfer to biacetyl from triplet benzene produced in the pulse radiolysis GT benzene-bin&y1 mixtures hzs been s!udied. The time reqtiIed to reach the maximum intensity of phosphorescence, tmax, after the electron pulse, varies as a function of biacetyl pressure at constant benzene pressure (40 tort), which gives the lifetime of tripIet benzene T = (6.7 & 3.2) X 10V6 s and the rate constant of the energy transfer k&Bz(TI)+biacetyl = (1.6 * 0.7) X 1O-'o cm3 molecule-' S-I.
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