The effect of sample environment on the room-temperature phosphorescence of several polynuclear aromatic hydrocarbons |
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| Authors: | Esther Lue-Yen Bower J.D. Winefordner |
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| Affiliation: | Department of Chemistry, University o f Florida, Gainesville, FL 32611 U.S.A. |
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| Abstract: | Room-temperature phosphorescence (r.t.p.) of numerous molecules has been studied with emphasis on several polynuclear aromatic hydrocarbons (PAH). The heavy atom effect has led to a significant enhancement of r.t.p. signals for the PAH studied with the trend being Tl+ > Ag+ > Pb2+ > Hg2+. The Tl+ also resulted in enhanced spectral features of emission bands. R.t.p. could be induced from PAH on a sodium acetate sample support as well as on filter paper. A study of the effect of different gaseous environments provided anomalous results. |
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