High resolution study of strongly interacting 2ν1(A1)/ν1+ν3(F2) bands of MGeH4 (M=76,74)

High resolution study of strongly interacting 2ν1(A1)/ν1+ν3(F2) bands of MGeH4 (M=76,74)

Bibliographic Details
Parent link:Journal of Quantitative Spectroscopy and Radiative Transfer
Vol. 205.— 2018.— [P. 96-104]
Corporate Author: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors: Ulenekov (Ulenikov) O. N. Oleg Nikolaevich, Gromova O. V. Olga Vasilievna, Bekhtereva E. S. Elena Sergeevna, Raspopova N. I. Natalya Ivanovna, Sennikov P. G. Petr Gennadjevich, Koshelev M. A. Maksim Aleksandrovich, Velmuzhova I. A., Velmuzhov A. P. Aleksandr Pavlovich
Summary:Title screen
The infrared spectra of GeH4 (88.1 % of 76GeH4, 11.5 % of 74GeH4, and a minor amounts of three other stable isotopic species in the sample) were measured in the 4000–4250 cm region with a high resolution of 0.003 cm at different pressures with the Bruker IFS 125HR Fourier transform interferometer (Nizhny Novgorod, Russia) and were analyzed theoretically. The 1974 transitions with Jmax. = 21 were assigned to the bands and 2?1(A1) of the 76GeH4 isotopologue. Rotational, centrifugal distortion, tetrahedral splitting, and interaction parameters for the (1010, F2) and (2000, A1) vibrational states were determined from the fit of experimental line positions. Influence of the (0020, A1), (0020, E) and (0020, F2) vibrational states on the structure of the states (1010, F2) and (2000, A1) is taken into account. In this case, the main resonance interaction parameters have been estimated on the basis of the local mode model and then fitted. A set of spectroscopic parameters of the effective Hamiltonian obtained from a weighted fit reproduces the initial experimental data with the d cm. The results of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 652) are presented also.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2018
Subjects:
электронный ресурс
труды учёных ТПУ
spherical top molecules
resonance interactions
rotational and distortion parameters
Online Access:https://doi.org/10.1016/j.jqsrt.2017.09.025
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667278

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