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High Resolution Study of the 3ν2, ν1+ ν2, and ν2+ ν3Bands of H2Te

✍ Scribed by J.-M. Flaud; Ph. Arcas; H. Bürger; O. Polanz

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
711 KB
Volume
182
Category
Article
ISSN
0022-2852

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✦ Synopsis

High-resolution Fourier transform spectra of a natural sample of hydrogen telluride and of monoisotopic H 2 130 Te have been recorded in the 3.2-4-0 mm spectral region where the 3n 2 , n 1 / n 2 , and n 2 / n 3 bands of this molecule absorb. The (030) rotational levels were least-squares fitted using a Watson-type Hamiltonian whereas it proved necessary to consider the strong Coriolis interaction coupling the (110) and the (011) rotational levels. In this way all the experimental levels were calculated to within their experimental uncertainty and precise sets of vibrational energies and rotational and coupling constants were obtained for the (030), ( 110), and (011) vibrational states of H 2 130 Te, H 2 128 Te, H 2 126 Te, H 2 125 Te, H 2 124 Te, H 2 123 Te, and H 2 122 Te. The band centers for the most abundant isotopic species, namely H 2 130 Te, are: n o (3n 2 ) Å 2565.4428, n o (n 1 / n 2 ) Å 2911.4098, n o (n 2 / n 3 ) Å 2915.9599 cm 01

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