High resolution study of strongly interacting v(1)(A(1))/v(3)(F-2) bands of (GeH4)-Ge-M (M=76, 74)

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

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The infrared spectra of GeH4 were measured in the 1900-2300cm-1 region with a high resolution of 0.003cm-1 at different pressures with the Bruker IFS 125HR Fourier transform interferometer (Nizhny Novgorod, Russia) and were analyzed theoretically. 1550 transitions with Jmax.=31 were assigned to the ν3 and ν1 bands of 76GeH4. Rotational, centrifugal distortion, tetrahedral splitting, and resonance interaction parameters for the (0010) and (1000) vibrational states were determined from the fit of experimental line positions. The obtained set of parameters reproduces the initial experimental data with accuracy close to experimental uncertainties. The result of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 750 with Jmax.=27) is presented also.

Original languageEnglish
Pages (from-to)161-174
Number of pages14
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume164
DOIs
Publication statusPublished - 1 Oct 2015

Fingerprint

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

Keywords

  • v(1)/v(3) interacting states of GeH4
  • High resolution spectrum of GeH4
  • Spectroscopic parameters

ASJC Scopus subject areas

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

Cite this

High resolution study of strongly interacting v(1)(A(1))/v(3)(F-2) bands of (GeH4)-Ge-M (M=76, 74). / Koshelev, M. A.; Velmuzhov, A. P.; Velmuzhova, I. A.; Sennikov, P. G.; Raspopova, Natalia Ivanovna; Bekhtereva, E. S.; Gromova, O. V.; Ulenikov, O. N.

In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 164, 01.10.2015, p. 161-174.

Research output: Contribution to journalArticle

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AU - Koshelev, M. A.

AU - Velmuzhov, A. P.

AU - Velmuzhova, I. A.

AU - Sennikov, P. G.

AU - Raspopova, Natalia Ivanovna

AU - Bekhtereva, E. S.

AU - Gromova, O. V.

AU - Ulenikov, O. N.

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AB - The infrared spectra of GeH4 were measured in the 1900-2300cm-1 region with a high resolution of 0.003cm-1 at different pressures with the Bruker IFS 125HR Fourier transform interferometer (Nizhny Novgorod, Russia) and were analyzed theoretically. 1550 transitions with Jmax.=31 were assigned to the ν3 and ν1 bands of 76GeH4. Rotational, centrifugal distortion, tetrahedral splitting, and resonance interaction parameters for the (0010) and (1000) vibrational states were determined from the fit of experimental line positions. The obtained set of parameters reproduces the initial experimental data with accuracy close to experimental uncertainties. The result of analogous analysis of the 74GeH4 isotopologue (the number of assigned transitions is 750 with Jmax.=27) is presented also.

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