High resolution study of strongly interacting 2ν1(A1)/ν13(F2) bands of MGeH4 (M=76,74)

O. N. Ulenikov, O. V. Gromova, E. S. Bekhtereva, N. I. Raspopova, P. G. Sennikov, M. A. Koshelev, I. A. Velmuzhova, A. P. Velmuzhov, S. A. Adamchik

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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−1 region with a high resolution of 0.003 cm−1 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 ν13(F2) and 2ν1(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 drms=4.5×10−4 cm−1. The results of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 652) are presented also.

Original languageEnglish
Pages (from-to)96-104
Number of pages9
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume205
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Hamiltonians
Interferometers
Fourier transforms
Infrared radiation
vibrational states
high resolution
Russian Federation
infrared spectra
interferometers
interactions

Keywords

  • Resonance interactions
  • Rotational and distortion parameters
  • Spherical top molecules

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

Cite this

High resolution study of strongly interacting 2ν1(A1)/ν13(F2) bands of MGeH4 (M=76,74). / Ulenikov, O. N.; Gromova, O. V.; Bekhtereva, E. S.; Raspopova, N. I.; Sennikov, P. G.; Koshelev, M. A.; Velmuzhova, I. A.; Velmuzhov, A. P.; Adamchik, S. A.

In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 205, 01.01.2018, p. 96-104.

Research output: Contribution to journalArticle

@article{264e7c44e02b4baa8052960709a29b08,
title = "High resolution study of strongly interacting 2ν1(A1)/ν1+ν3(F2) bands of MGeH4 (M=76,74)",
abstract = "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−1 region with a high resolution of 0.003 cm−1 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 ν1+ν3(F2) and 2ν1(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 drms=4.5×10−4 cm−1. The results of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 652) are presented also.",
keywords = "Resonance interactions, Rotational and distortion parameters, Spherical top molecules",
author = "Ulenikov, {O. N.} and Gromova, {O. V.} and Bekhtereva, {E. S.} and Raspopova, {N. I.} and Sennikov, {P. G.} and Koshelev, {M. A.} and Velmuzhova, {I. A.} and Velmuzhov, {A. P.} and Adamchik, {S. A.}",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.jqsrt.2017.09.025",
language = "English",
volume = "205",
pages = "96--104",
journal = "Journal of Quantitative Spectroscopy and Radiative Transfer",
issn = "0022-4073",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - High resolution study of strongly interacting 2ν1(A1)/ν1+ν3(F2) bands of MGeH4 (M=76,74)

AU - Ulenikov, O. N.

AU - Gromova, O. V.

AU - Bekhtereva, E. S.

AU - Raspopova, N. I.

AU - Sennikov, P. G.

AU - Koshelev, M. A.

AU - Velmuzhova, I. A.

AU - Velmuzhov, A. P.

AU - Adamchik, S. A.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - 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−1 region with a high resolution of 0.003 cm−1 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 ν1+ν3(F2) and 2ν1(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 drms=4.5×10−4 cm−1. The results of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 652) are presented also.

AB - 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−1 region with a high resolution of 0.003 cm−1 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 ν1+ν3(F2) and 2ν1(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 drms=4.5×10−4 cm−1. The results of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 652) are presented also.

KW - Resonance interactions

KW - Rotational and distortion parameters

KW - Spherical top molecules

UR - http://www.scopus.com/inward/record.url?scp=85033688216&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85033688216&partnerID=8YFLogxK

U2 - 10.1016/j.jqsrt.2017.09.025

DO - 10.1016/j.jqsrt.2017.09.025

M3 - Article

VL - 205

SP - 96

EP - 104

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

JF - Journal of Quantitative Spectroscopy and Radiative Transfer

SN - 0022-4073

ER -