Vibrational-Rotational Interaction in Molecules of the Spherical Top Type

B. T. Kuyliev; N. D. Orlova; L. A. Pozdnyakova; L. O. Meyliev; M. A. Rahmonova; Zh. N. Huzhamberdieva

doi:10.15407/ujpe59.03.0222

Vibrational-Rotational Interaction in Molecules of the Spherical Top Type

Authors

B. T. Kuyliev Karshi State University
N. D. Orlova St.-Petersburg State University
L. A. Pozdnyakova St.-Petersburg State University
L. O. Meyliev Karshi State University
M. A. Rahmonova Karshi State University
Zh. N. Huzhamberdieva Karshi State University

DOI:

https://doi.org/10.15407/ujpe59.03.0222

Keywords:

Raman spectra, spherical top, vibrational-translational interaction

Abstract

We show that, in the Raman spectrum of very low-density gases, the Q branch of the nu1 band of methane and deuteromethane has asymmetric contour. With increase in the gas density, the band contour becomes more symmetric and broadens. The band shape is described by the Voigt curve. Possible mechanisms of the vibrational broadening of v1 – dephasing and intermode exchange of vibrational energy – are analyzed. Both mechanisms may be efficient in the band broadening.

References

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Published

2018-10-19

How to Cite

Kuyliev, B. T., Orlova, N. D., Pozdnyakova, L. A., Meyliev, L. O., Rahmonova, M. A., & Huzhamberdieva, Z. N. (2018). Vibrational-Rotational Interaction in Molecules of the Spherical Top Type. Ukrainian Journal of Physics, 59(3), 222. https://doi.org/10.15407/ujpe59.03.0222

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Issue

Vol. 59 No. 3 (2014)

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