dc.creator Butcher, Samuel en_US dc.creator Cahill, P. en_US dc.date.accessioned 2006-06-15T13:08:19Z dc.date.available 2006-06-15T13:08:19Z dc.date.issued 1961 en_US dc.identifier 1961-C-8 en_US dc.identifier.uri http://hdl.handle.net/1811/8054 dc.description $^{*}$The research was made possible by support extended Harvard University by the Office of Naval Research under ONR Contract Nonr 1866, Task Order XIV. $^{\dagger}$National Science Foundation Predoctoral Fellow, 1958--1961. $^{\ddag}$Monsanto Chemical Company, Fellowship, 1959--1961. $^{1}$D. Lide, Jr., J. Chem. Phys., 19, 1605 (1956). $^{2}$D. Kivelson, J. Chem. Phys., 22, 1733 (1954). en_US dc.description Author Institution: Mallinckrodt Chemical Laboratory, Harvard University en_US dc.description.abstract The microwave spectrum of methyl stannane has been $reinvestigated.^{1}$ Ground state transitions for $J = 0\rightarrow 1$ were measured for seven tin isotopes (116 to 124). Three torsional states for each of the 116, 118 and 120 isotopes were observed to be split into doublets due to vibration-internal rotation interaction, and their frequencies were fitted to Kivelson’s $equation^{2}$ $\nu/2 ={B_{v}+G_{v}+F_{v}< m|1-\cos 3 \theta|m>}$ Values $F_{v} =--17.568$ mc. And $G_{v} =--0.3525$ mc, were obtained, from which the torsional satellites of all the isotopes were calculated and agreed to within 0.3 mc. with observed transitions. From the observed splittings of the torsional states a barrier of $650 \pm 30$ calories was calculated. Correlations between molecules in this series will be discussed. en_US dc.format.extent 95173 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title BARRIER TO INTERNAL ROTATION IN METHYL $STANNANE^{*}$ en_US dc.type article en_US
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