dc.creator Kozin, I. N. en_US dc.creator Klee, S. en_US dc.creator Polanz, O. en_US dc.creator Bürger, H. en_US dc.creator Jensen, Per en_US dc.date.accessioned 2007-11-20T17:04:58Z dc.date.available 2007-11-20T17:04:58Z dc.date.issued 1995 en_US dc.identifier 1995-MG-03 en_US dc.identifier.uri http://hdl.handle.net/1811/29483 dc.description $^{1}$see I. N. Kozin, S. Klee, P. Jensen, O. L. Polyansky and I. M. Pavlichenkov, J. Mol. Spectrosc. 158, 409-422 (1993) and references therein. $^{2}$P. Jensen, Y. Li, G. Hirsch, R. J. Buenker, T. J. Lee, and I. N. Kozin, Chem. Phys. 190, 179-189 (1995). en_US dc.description Author Institution: Russian Academy of Science, Uljanov Street 46, 603 600 Nizhnii Novgorod, Russia.; Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 58, D-35392 Giessen, Germany.; Bergische Universität - Gesamthochschule Wuppertal, D-42097 Wuppertal, Germany. en_US dc.description.abstract We report here a new high resolution FTIR investigation of the pure rotational spectrum of the $H_{2}Te$ molecule. The spectra were recorded in the region $30-360 cm^{-1}$ at temperature between $-40^{\circ}C$ and $-30^{\circ}C$ with a Bruker IFS 120 HR interferometer. Analyses of the pure rotational spectra in the vibrational ground states of the different tellurium-substituted isotopomers have been carried out using an effective Hamiltonian model. Significantly improved molecular parameters have been obtained. One important aim of the present work is the study of the "cluster effect" (i.e., the formation of nearly degenerate, four-member groups of rotation-vibration energy levels at high rotational excitation) in the vibrational ground state of $H_{2}Te$. This effect has been experimentally verified forthe vibrational ground state of $H_{2}Se^{1}$. It has been calculated ab $inition^{2}$ that in the vibrational ground state of $H_{2}Te$, the four highest energy levels at each J value will start to converge towards forming a clusters at $J \approx 12$. Because of the instability of $H_{2}Te$ which necessitates that spectra be recorded at relatively low temperatures, it is difficult to observe transitions involving the cluster states. In the present investigation we have assigned transitions with J > 20. However, the highest $K_{a}$ value, for which lines could be assigned, was 16. At this $K_{a}$ value, we have not obtained the "coverage" of the cluster states previously obtained for the $H_{2}Se$ $molecule^{1}$. However we believe that the present study gives a good starting point for further investigations of cluster phenomena in $H_{2}Te$. en_US dc.format.extent 88870 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE ROTATIONAL SPECTRUM IN THE VIBRATIONAL GROUND STATE OF $H_{2}Te$ en_US dc.type article en_US
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