Analysis of the High-Resolution Rovibrational Spectrum of the C2H2D2-cis Molecule in the Region 1620–1780 cm–1

Yu V. Konova, I. A. Konov, A. G. Ziatkova

Research output: Contribution to journalArticle

Abstract

The spectrum of the cis-ethylene-d2 molecule (C2H2D2-cis) has been recorded with a Bruker IFS 120 HR Fourier spectrometer in the wavelength region 1100–2000 cm–1 with a resolution of 0.0025 cm–1. The region 1620–1780 cm–1, in which the weak 2ν7 (А1) and ν6 + ν101) bands with centers at (1685.28900 ± 0.00069) cm–1 and (1698.06400 ± 0.00033) cm–1 are located, is considered. These bands have not been analyzed previously and are studied in the present work for the first time. The spectroscopic parameters are fitted using energies of 164 upper levels corresponding to the examined states. As a result, 10 parameters of diagonal blocks of the effective Hamiltonian describing the rovibrational structures of the 2ν7 and ν6 + ν10 bands and 5 resonance parameters of the c-type Coriolis interaction are obtained.

Original languageEnglish
Pages (from-to)363-369
Number of pages7
JournalRussian Physics Journal
Volume62
Issue number2
DOIs
Publication statusPublished - 15 Jun 2019

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high resolution
molecules
ethylene
spectrometers
wavelengths
interactions
energy

Keywords

  • CHD-cis molecule
  • effective Hamiltonian
  • ethylene

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Analysis of the High-Resolution Rovibrational Spectrum of the C2H2D2-cis Molecule in the Region 1620–1780 cm–1. / Konova, Yu V.; Konov, I. A.; Ziatkova, A. G.

In: Russian Physics Journal, Vol. 62, No. 2, 15.06.2019, p. 363-369.

Research output: Contribution to journalArticle

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N2 - The spectrum of the cis-ethylene-d2 molecule (C2H2D2-cis) has been recorded with a Bruker IFS 120 HR Fourier spectrometer in the wavelength region 1100–2000 cm–1 with a resolution of 0.0025 cm–1. The region 1620–1780 cm–1, in which the weak 2ν7 (А1) and ν6 + ν10 (В1) bands with centers at (1685.28900 ± 0.00069) cm–1 and (1698.06400 ± 0.00033) cm–1 are located, is considered. These bands have not been analyzed previously and are studied in the present work for the first time. The spectroscopic parameters are fitted using energies of 164 upper levels corresponding to the examined states. As a result, 10 parameters of diagonal blocks of the effective Hamiltonian describing the rovibrational structures of the 2ν7 and ν6 + ν10 bands and 5 resonance parameters of the c-type Coriolis interaction are obtained.

AB - The spectrum of the cis-ethylene-d2 molecule (C2H2D2-cis) has been recorded with a Bruker IFS 120 HR Fourier spectrometer in the wavelength region 1100–2000 cm–1 with a resolution of 0.0025 cm–1. The region 1620–1780 cm–1, in which the weak 2ν7 (А1) and ν6 + ν10 (В1) bands with centers at (1685.28900 ± 0.00069) cm–1 and (1698.06400 ± 0.00033) cm–1 are located, is considered. These bands have not been analyzed previously and are studied in the present work for the first time. The spectroscopic parameters are fitted using energies of 164 upper levels corresponding to the examined states. As a result, 10 parameters of diagonal blocks of the effective Hamiltonian describing the rovibrational structures of the 2ν7 and ν6 + ν10 bands and 5 resonance parameters of the c-type Coriolis interaction are obtained.

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