Some aspects of room-temperature phosphorescence in liquid solutions |
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| Authors: | Donkerbroek J J Elzas J J Gooijer C Frei R W Velthorst N H |
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| Institution: | Department of General and Analytical Chemistry of the Free University, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands. |
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| Abstract: | Experimental requirements for room-temperature phosphorescence measurements in liquids (RTPL) are discussed. Phosphorescence quantum yields and triplet lifetimes of some brominated naphthalenes and halogenated biphenyls at 77 K in 2-methyltetrahydrofuran and at room temperature in hexane are reported and compared. Surprisingly the naphthalenes show only little loss in quantum yields in going from 77 K to room temperature. Sensitized phosphorescence is discussed as a means of expanding the analytical potential of RTPL. Results with a model system of benzophenone as a donor (analyte) and 1,4-dibromonaphthalene as an acceptor are presented. |
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| Keywords: | To whom correspondence is to be addressed |
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