Precise ro-vibrational analysis of molecular bands forbidden in absorption: The ν8+ν10 band of the 12C2H4 molecule
| Parent link: | Journal of Molecular Spectroscopy: Scientific Journal Vol. 313.— 2015.— [P. 4–13] |
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| Corporate Author: | |
| Other Authors: | , , , , , |
| Summary: | Title screen The highly accurate (experimental accuracy in line positions ð1 2Þ 104 cm1 ) ro-vibrational spectrum of the m8 þ m10 band of the 12C2H4 molecule was recorded for the first time with high resolution Fourier transform spectrometry and analyzed in the region of 1650-1950 cm1 using the Hamiltonian model which takes into account Coriolis resonance interactions between the studied m8 þ m10 band, which is forbidden in absorption, and the bands m4 þ m8 and m7 þ m8. About 1570 transitions belonging to the m8 þ m10 band were assigned in the experimental spectra with the maximum values of quantum numbers J max: ¼ 35 and Kmax: a ¼ 18. On that basis, a set of 38 vibrational, rotational, centrifugal distortion, and resonance interaction parameters was obtained from the fit. They reproduce values of 598 initial ''experimental'' ro-vibrational energy levels (positions of about 1570 experimentally recorded and assigned transitions) with the rms error drms ¼ 0:00045 cm1 (drms ¼ 0:00028 cm1 when upper ro-vibrational energies obtained from blended and very weak transitions were deleted from the fit). Режим доступа: по договору с организацией-держателем ресурса |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1016/j.jms.2015.04.008 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641652 |
| Summary: | Title screen The highly accurate (experimental accuracy in line positions ð1 2Þ 104 cm1 ) ro-vibrational spectrum of the m8 þ m10 band of the 12C2H4 molecule was recorded for the first time with high resolution Fourier transform spectrometry and analyzed in the region of 1650-1950 cm1 using the Hamiltonian model which takes into account Coriolis resonance interactions between the studied m8 þ m10 band, which is forbidden in absorption, and the bands m4 þ m8 and m7 þ m8. About 1570 transitions belonging to the m8 þ m10 band were assigned in the experimental spectra with the maximum values of quantum numbers J max: ¼ 35 and Kmax: a ¼ 18. On that basis, a set of 38 vibrational, rotational, centrifugal distortion, and resonance interaction parameters was obtained from the fit. They reproduce values of 598 initial ''experimental'' ro-vibrational energy levels (positions of about 1570 experimentally recorded and assigned transitions) with the rms error drms ¼ 0:00045 cm1 (drms ¼ 0:00028 cm1 when upper ro-vibrational energies obtained from blended and very weak transitions were deleted from the fit). Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1016/j.jms.2015.04.008 |