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dc.creatorParmenter, C. S.en_US
dc.creatorSetzer, B.en_US
dc.creatorTang, K.en_US
dc.date.accessioned2006-06-15T13:46:53Z
dc.date.available2006-06-15T13:46:53Z
dc.date.issued1976en_US
dc.identifier1976-RE-6en_US
dc.identifier.urihttp://hdl.handle.net/1811/9712
dc.descriptionAuthor Institution: Department of Chemistry, Indiana Universityen_US
dc.description.abstractThe switching of electronic energy between (almost) like molecules in collision has been studied under conditions where the transfer (or non-transfer) of vibrational quanta can also be followed. A low pressure of $C_{6}D_{6}$, can be pumped to its $S_{1}(0^{0})$ level in the presence of a low pressure of $C_{6}H_{6}$ without light absorption by the latter. If this is done, fluorescence is observed from the $S_{1}$ states of both species as a result of collisional E-E transfer. The transfer is efficient; the cross section is about half of that for a hard sphere collision. The fluorescence spectra are sufficiently open so that the relative populations of specific vibrational levels in the newly excited $C_{6}H_{6}$ molecules can be followed. Excitation in two levels of $C_{6}H_{6}$ can be seen clearly as a result of the energy transfers $$ \begin{array}{l@{\qquad}l} C_{6}D_{6}^{*}(0^{0}) + C_{6}H_{6} \rightarrow C_{6}D_{6} + C_{6}H_{6}\ast(0^{0}) &\Delta E = -203 { cm}^{-1}\\ C_{6}D_{6}^{*}(0^{0}) + C_{6}H_{6} \rightarrow C_{6}D_{6} + C_{6}H_{6}\ast(16^{1}) &\Delta E = 34 { cm}^{-1} \end{array}$$ The cross section for the first channel exceeds that for the other by more than a factor of five, even though not favored by energy.en_US
dc.format.extent127176 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleELECTRONIC ENERGY TRANSFER BETWEEN LIKE POLYATOMIC MOLECULES IN THE VAPORen_US
dc.typearticleen_US


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