Molecular constants for the interacting upper states of the ν1, ν3, 2ν2, ν2 + ν4, and 2ν4 bands in 12CH4 |
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| Authors: | Jens-Erik Lolck Alan G Robiette Linda R Brown Robert H Hunt |
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| Institution: | Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark;Department of Chemistry, Reading University, Reading RG6 2AD, England;Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109 USA;Department of Physics, Florida State University, Tallahassee, Florida 32306 USA |
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| Abstract: | In a previous paper (J.-E. Lolck and A. G. Robiette, J. Mol. Spectrosc.88, 14 (1981)) a theoretical model for the interacting upper states of the ν1, ν3, 2ν2, ν2 + ν4, and 2ν4 bands in methane was described. The present paper summarizes the results obtained, using this model, in a comprehensive analysis of the five bands of 12CH4 through J′ = 12. Values of 80 molecular constants, of which 17 correspond to vibrationally off-diagonal operators, are reported. In addition the computed energy levels of the v3 = 1 state are compared to the experimental ones and to the result of the previous isolated band approach. |
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