dc.creator Arunan, E. en_US dc.creator Gutowsky, H. S. en_US dc.date.accessioned 2006-06-15T18:54:15Z dc.date.available 2006-06-15T18:54:15Z dc.date.issued 1993 en_US dc.identifier 1993-TC-12 en_US dc.identifier.uri http://hdl.handle.net/1811/18609 dc.description $^{1}$. B. F. Henson, G. V. Hartland, V. A. Venturo, and P. M. Felker, J. Chem. Phys. 97, 2189 (1992). $^{2}$. A. P. Cox, J. Mol. Struct. 97, 61(1983). en_US dc.description Author Institution: Noyes Chemical Laboratory, University of Illinois en_US dc.description.abstract The geometrical structure of the benzene dimer has been elusive in spite of extensive $studies.^{1}$ We report resolution of its rotational spectrum at low J(2 to 7) with a Balle/Flygare Fourier transform microwave spectrometer using a pulsed supersonic nozzle as the source. Transitions have been found which are symmetrical quartets with two different J- and K-dependent splittings of 30 to 400 kHz in an approximate 3:1 ratio. A set of 22 line centers has been fitted to a symmetric top with rotational constants B, DJ, and $D_{JK}$ of 427.76(2) KHz, 7.2(3) kHz, and 0.869(5) MHz. These results indicate a T-shaped structure having a benzene c.m. to c.m. distance of 4.96 {\AA} and coincident 6-fold and 2-fold axes with a modest effective barrier to internal $rotation.^{2}$ Further work is in progress and the results will be presented. en_US dc.format.extent 63639 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title $(C_{6}H_{6})_{2}$: ROTATIONAL SPECTRUM, STRUCTURE AND DYNAMICS en_US dc.type article en_US
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