Abstract
High-resolution Fourier transform infrared spectrum of CH3D has been recorded in the region of the fundamental bands v3, v5, and v6 between 900 and 1700 cm-1. High sensitivity of the equipment used as well as high accuracy of the recorded line positions gave the possibility of assigning the first-time transitions with the upper state J quantum number up to 23. In the analysis the new ground vibrational state information [O. N. Ulenikov, G. A. Onopenko, N. E. Tyabaeva, J. Schroderus, and S. Alanko, J. Mol. Spectrosc. 193, 249-259 (1999)] were used. In addition, modification of the Hamiltonian model of the interacting vibrational states (v3 = 1), (v5 = 1), and (v6 = 1) allowed the theoretical description of numerous effects and peculiarities in the spectrum. In particular, sets of a1/a2 splittings have been assigned and explained, not only for upper state K = 1 and 2 but also for K = 4 and 5. Moreover, unusually giant exotic splittings have been found for K = 7. The spectroscopic parameters reproducing the initial experimental energies with accuracy close to the experimental uncertainty have been determined.
| Original language | English |
|---|---|
| Pages (from-to) | 1-15 |
| Number of pages | 15 |
| Journal | Journal of Molecular Spectroscopy |
| Volume | 200 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2000 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Spectroscopy
- Physical and Theoretical Chemistry
Cite this
Study on the Rovibrational Interactions and a1/a2 Splittings in the v3/v5/v6 Triad of CH3D. / Ulenikov, O. N.; Onopenko, G. A.; Tyabaeva, N. E.; Schroderus, J.; Alanko, S.
In: Journal of Molecular Spectroscopy, Vol. 200, No. 1, 01.01.2000, p. 1-15.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Study on the Rovibrational Interactions and a1/a2 Splittings in the v3/v5/v6 Triad of CH3D
AU - Ulenikov, O. N.
AU - Onopenko, G. A.
AU - Tyabaeva, N. E.
AU - Schroderus, J.
AU - Alanko, S.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - High-resolution Fourier transform infrared spectrum of CH3D has been recorded in the region of the fundamental bands v3, v5, and v6 between 900 and 1700 cm-1. High sensitivity of the equipment used as well as high accuracy of the recorded line positions gave the possibility of assigning the first-time transitions with the upper state J quantum number up to 23. In the analysis the new ground vibrational state information [O. N. Ulenikov, G. A. Onopenko, N. E. Tyabaeva, J. Schroderus, and S. Alanko, J. Mol. Spectrosc. 193, 249-259 (1999)] were used. In addition, modification of the Hamiltonian model of the interacting vibrational states (v3 = 1), (v5 = 1), and (v6 = 1) allowed the theoretical description of numerous effects and peculiarities in the spectrum. In particular, sets of a1/a2 splittings have been assigned and explained, not only for upper state K = 1 and 2 but also for K = 4 and 5. Moreover, unusually giant exotic splittings have been found for K = 7. The spectroscopic parameters reproducing the initial experimental energies with accuracy close to the experimental uncertainty have been determined.
AB - High-resolution Fourier transform infrared spectrum of CH3D has been recorded in the region of the fundamental bands v3, v5, and v6 between 900 and 1700 cm-1. High sensitivity of the equipment used as well as high accuracy of the recorded line positions gave the possibility of assigning the first-time transitions with the upper state J quantum number up to 23. In the analysis the new ground vibrational state information [O. N. Ulenikov, G. A. Onopenko, N. E. Tyabaeva, J. Schroderus, and S. Alanko, J. Mol. Spectrosc. 193, 249-259 (1999)] were used. In addition, modification of the Hamiltonian model of the interacting vibrational states (v3 = 1), (v5 = 1), and (v6 = 1) allowed the theoretical description of numerous effects and peculiarities in the spectrum. In particular, sets of a1/a2 splittings have been assigned and explained, not only for upper state K = 1 and 2 but also for K = 4 and 5. Moreover, unusually giant exotic splittings have been found for K = 7. The spectroscopic parameters reproducing the initial experimental energies with accuracy close to the experimental uncertainty have been determined.
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U2 - 10.1006/jmsp.1999.8032
DO - 10.1006/jmsp.1999.8032
M3 - Article
VL - 200
SP - 1
EP - 15
JO - Journal of Molecular Spectroscopy
JF - Journal of Molecular Spectroscopy
SN - 0022-2852
IS - 1
ER -