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dc.creatorSpangler, L. H.en_US
dc.creatorMatsumoto, Y.en_US
dc.creatorPratt, D. W.en_US
dc.date.accessioned2006-06-15T14:46:50Z
dc.date.available2006-06-15T14:46:50Z
dc.date.issued1983en_US
dc.identifier1983-MG-08en_US
dc.identifier.urihttp://hdl.handle.net/1811/11846
dc.descriptionAuthor Institution: Department of Chemistry, University of Pittsburghen_US
dc.description.abstractIn this work, we will show that the decay of `single’ rotational levels of the first excited `singlet’ state of pyrazine can also be influcenced by small magnetic fields, thereby demonstrating that the coupled state is triplet in character. Under nanosecond excitation conditions. We find that neither $\tau^{+}$ nor $\tau^{-}$ are field dependent, but that $A^{+}/A^{-}$ increases in a sigmoidal fashion with the field, reaching a plateau at $H\sim 100$ G for all $J^{\prime}$ from 1--7. However, the decay of the $J^{\prime} = 0$ level shows no magnetic field dependence. This result, together with the results of similar studies of isotopically labeled pyrazines, suggests that the levels which are mixed by the field are the fine-structure components of the triplet state, which results in a breakdown of the $\Delta J = 0$ selection rule for intersystem crossing. The possible reasons for this behavior at such low fields will be discussed. $^{*}$Work supported by the National Science Foundation.en_US
dc.format.extent79533 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleMAGNETIC FIELD EFFECTS ON THE DECAY OF $^{1}B_{3u}$ PYRAZINE IN A SUPERSONIC $JET^{*}$en_US
dc.typearticleen_US


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