bbservations of the phosphorescence decay of isotopic mixtures of naphthalene-ha and d &hD p enanthrene-h 10 and -dlo, and chrysene-h Iz and d12, in ethanol solutions at 77 K are anaIyscd to determine !he ratio .k~/k~ of the tripIet radiative rate parameters of the perprotonated and perdeuterated co
Phosphorescence of aromatic hydrocarbons in the vapour phase
β Scribed by W.H. van Leeuwen; J. Langelaar; J.D.W. van Voorst
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 219 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Phosphorescence from pyrene and naphthalene in the vapour phase has been obsrved. The lifetime and quantum yields are studied between 0.04 and 10 torr.
π SIMILAR VOLUMES
The phosphorescence spectra of several simple arenes, pyrene, naphthahne, biphenyl and their bfiminated derivatives have been observed in aqueous micellar solutions at room temperature. The success of these experiments is due to the protective screening of the arene triplet state by solubilization i
Measurements hare been made of the fluorescence hfetimes of se\ en1 akmes in the collision-free vapour state. The fIuorescence lifetimes decreased with increasing energy of excitation, but the lifetimes of molccuIes exrted near the zeropoint level exhibited values similar to the neat liquid \.dues,