For the first time D 2 Se and HDSe as 80 Se monoisotopic and natural material were studied in the region of the 2 fundamental vibration by high-resolution (0.0033 cm Ϫ1 ) Fourier transform infrared spectroscopy. For D 2 Se which is an asymmetric rotor with C 2v symmetry the 2 band is of B type while
The Ground State of D2Se and HDSe
✍ Scribed by J.-M. Flaud; Ph. Arcas; O.N. Ulenikov; G.A. Onopenko; N.E. Tyabaeva; W. Jerzembeck; H. Bürger
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 253 KB
- Volume
- 197
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
Ground state rotational constants of D 2 M Se and HD M Se, M ϭ 76, 77, 78, 80, and 82, have been determined up to octic centrifugal distortion terms from ground state combination differences. These were obtained from rotational analyses of the 2 , 1 , and 3 bands both of natural and 80 Se monoisotopic material recorded with a resolution of ca. 3 ϫ 10 Ϫ3 cm Ϫ1 . While the full set of rotational parameters of the 80 Se species was determined with significance, some of the centrifugal distortion terms of the less abundant species were either constrained to those of the 80 Se species or extrapolated.
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High-resolution Fourier transform spectra of HDSe in the region of the 2 3 and 3 3 bands were recorded and analyzed for five different M Se isotopic HDSe species. Energies obtained from rovibrational analyses of the ( 002) and ( 003) states, together with those taken of the (001) state from an earli