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dc.creatorSnyder, Patricia Annen_US
dc.creatorLund, P. A.en_US
dc.creatorSchatz, P. N.en_US
dc.creatorRowe, Ednor M.en_US
dc.date.accessioned2006-06-15T14:40:20Z
dc.date.available2006-06-15T14:40:20Z
dc.date.issued1981en_US
dc.identifier1981-RB-5en_US
dc.identifier.urihttp://hdl.handle.net/1811/11592
dc.description$^{1}$ P. G. Wilkinson, Can. J. Phys. 34, 596 (1956). $^{2}$ R. Vitenberg, B. Katz and B. Scharf, Chem. Phys. Letters 71, 187 (1980).en_US
dc.descriptionAuthor Institution:en_US
dc.description.abstractThis study reports magnetic circular dichroism (MCD) measurements on benzene vapor using the synchrotron radiation source (Tantalus 1) at the University of Wisconsin-Madison. The apparatus used will be described. The spectrum was scanned from 190-136 nm with attention focussed on the Rydberg transitions starting with line 3R (Wilkinson $nomenclature^{1}$) at 152.2 nm. The $3R^{\prime}$ origin shows a prominent MCD A term whereas the R series origins show no significant MCD. This shown that if both the R and $R^{\prime}$ series are associated with the $\pi(e_{1g})\rightarrow $np excitation, then the former must correspond to the transition $^{1}A_{1g} \rightarrow {}^{1}A_{2u}$ and the latter must correspond to $^{1}A_{1g}\rightarrow {}1^{E}_{1u}$. The MCD of hot bands in the vicinity of the $3R$ origin is consistent with a recent Jahn-Teller analysis so Vitenberg et $al.^{2}$ which supports the above assignments of the origins. The $3r’’$ and $3r’’$ origins also appear to show strong A terms. We tentatively assign these origins to $^{1}A_{1g}\rightarrow ^{1}E_{1u}$ transitions associated with the $\pi(e_{1g})\rightarrow $nf excitation. The location of the $^{1}A_{1g}\rightarrow ^{1}A_{2u}$ transition which should also accompany this excitation is not clear, and a definitive assignment of the $R^{\prime\prime}$, $R^{\prime\prime}^{\prime}$ series requires higher resolution data. These measurements mark the first use of a synchrotron radiation source to make vacuum ultraviolet MCD measurements and suggest that much useful spectroscopic information can be obtained in this way.en_US
dc.format.extent127820 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleMAGNETIC CIRCULAR DICHROISM OF THE RYDBERG TRANSITIONS IN BENZENE USING SYNCHROTRON RADIATIONen_US
dc.typearticleen_US


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