VIBRATION-ROTATIONAL INTERACTIONS in the STATES Ν2=1Ν2=1 and Ν5=1Ν5=1 of 13CH3F13CH3F

VIBRATION-ROTATIONAL INTERACTIONS IN THE STATES ν2=1 and ν5=1 OF 13CH3F.

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Title: VIBRATION-ROTATIONAL INTERACTIONS IN THE STATES ν2=1 and ν5=1 OF 13CH3F. Creators: Papoušek, D.; Demaison, J.; Wlodarczak, G.; Pracna, P.; Klee, S.; Winnewisser, M.;Belov, S. P.; Tretyakov, M. Yu.; Chapovsky, P. Issue Date: 1993 Publisher: Ohio State University Abstract: The submillimeterwave spectra were measured of the rotational transitions in the ν2=1ν2=1 and ν5=1ν5=1 states of 13CH3F13CH3F. Almost 3000 lines were assigned in the high resolution infrared spectra of the ν2ν2 and ν5ν5 bands including 142 lines of the Ak=±2Ak=±2forbidden transitions. A variational approach was applied to the analysis of the ν2ν2 and ν5ν5bands which are strongly perturbed by the x−yx−y Coriolis and ‘‘2.1′′‘‘2.1″ I-type interactions (E2=1453.658cm−1E2=1453.658cm−1 and E5=1465.576cm−1E5=1465.576cm−1). Combination differences were generated from these wavenumbers to determine very precise ground state parameters of 13CH3F13CH3F. The results of a computer search for the coincidences between the energy levels of the ortho-and para-states of 12CH3F12CH3F and 13CH3F13CH3F were used in a new theoretical interpretation of the ortho-para conversion rates in both molecules. Description: Author Institution: Laboratoire de Spectroscopic Hertzienne., Universite de Lille I. F.; J. Heyrovsky Institute of Physical Chemistry and Electrochemistry., Czech Academy of Sciences.; Physikalisch Chemisches Institut., Justus-Liebig Universitat.; Institute of Applied Physics., Russian Academy of Sciences.; Huygens Laboratory., Leiden University URI: http://hdl.handle.net/1811/18689 Other Identifiers: 1993-WE-3

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VIBRATION-ROTATIONAL INTERACTIONS IN THE STATES ν2=1ν2=1 and ν5=1ν5=1 OF 13CH3F13CH3F. Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/18689 Show full item record

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1993-WE-03.jpg 80.72Kb JPEG image

Title: VIBRATION-ROTATIONAL INTERACTIONS IN THE STATES ν2=1ν2=1 and ν5=1ν5=1 OF 13CH3F13CH3F. Creators: Papoušek, D.; Demaison, J.; Wlodarczak, G.; Pracna, P.; Klee, S.; Winnewisser, M.;Belov, S. P.; Tretyakov, M. Yu.; Chapovsky, P. Issue Date: 1993 Publisher: Ohio State University Abstract: The submillimeterwave spectra were measured of the rotational transitions in the ν2=1ν2=1 and ν5=1ν5=1 states of 13CH3F13CH3F. Almost 3000 lines were assigned in the high resolution infrared spectra of the ν2ν2 and ν5ν5 bands including 142 lines of the Ak=±2Ak=±2forbidden transitions. A variational approach was applied to the analysis of the ν2ν2 and ν5ν5bands which are strongly perturbed by the x−yx−y Coriolis and ‘‘2.1′′‘‘2.1″ I-type interactions (E2=1453.658cm−1E2=1453.658cm−1 and E5=1465.576cm−1E5=1465.576cm−1). Combination differences were generated from these wavenumbers to determine very precise ground state parameters of 13CH3F13CH3F. The results of a computer search for the coincidences between the energy levels of the ortho-and para-states of 12CH3F12CH3F and 13CH3F13CH3F were used in a new theoretical interpretation of the ortho-para conversion rates in both molecules. Description: Author Institution: Laboratoire de Spectroscopic Hertzienne., Universite de Lille I. F.; J. Heyrovsky Institute of Physical Chemistry and Electrochemistry., Czech Academy of Sciences.; Physikalisch Chemisches Institut., Justus-Liebig Universitat.; Institute of Applied Physics., Russian Academy of Sciences.; Huygens Laboratory., Leiden University URI: http://hdl.handle.net/1811/18689 Other Identifiers: 1993-WE-3