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dc.creatorWatts, Richard J.en_US
dc.creatorStrickler, S. J.en_US
dc.date.accessioned2006-06-15T16:46:52Z
dc.date.available2006-06-15T16:46:52Z
dc.date.issued1968en_US
dc.identifier1968-Q-4en_US
dc.identifier.urihttp://hdl.handle.net/1811/15564
dc.descriptionThis work was supported by a grant from the National Science Foundation. Richard J. Watts is a N.D.E.A. predoctoral fellow.en_US
dc.descriptionAuthor Institution: Department of Chemistry, University of Coloradoen_US
dc.description.abstractThe effect of the number and position of deuterium sbstituents on the phosphorescence lifetime has been studied for eight different isotopic naphthalenes at $76^{\circ} K$. These studies reveal a significant dependence of the rate of radiationless decay to the ground state on the positions of the protons in the molecule. This conclusion is contrary to the conclusion of Lin and Bersohn that the radiationless decay is independent of the positions of the protons. It is found that protons in the $\alpha$ positions are about 1.6 times as effective as protons in the $\beta$ positions in promoting radiationless transitions. A simple empirical relation is found to give a reasonable fit to the data. A small intermolecular isotope effect on the triplet state lifetime of napthalene-$d_{8}$ in ethanol is also found upon deuteration of the solvent. The experimental results are discussed in terms of existing theories of radiationless processes.en_US
dc.format.extent156063 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleDEUTERIUM ISOTOPE EFFECTS ON THE LIFETIME OF THE PHOSPHORESCENT TRIPLET STATE OF NAPHTHALENEen_US
dc.typearticleen_US


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