Analysis of high-resolution vibrational-rotational spectrum of the C₂H₂D₂-cis molecule in the region of 1620-1780 cm^-1 | Izvestiya vuzov. Fizika. 2019. № 2.

Analysis of high-resolution vibrational-rotational spectrum of the C₂H₂D₂-cis molecule in the region of 1620-1780 cm^-1

The spectrum of the cis-ethylene-d₂ molecule (C₂H₂D₂-cis) has been recorded with a Bruker IFS 120 HR Fourier spectrometer in the wavenumber range from 1100 to 2000 cm^-1 with a resolution of 0.0025 cm^-1. In this paper, we consider the range of 1620-1780 cm^-1, in which the weak bands 2ν₇ (A₁) and ν₆ + ν₁₀ (B₁) with centers 1685.28900 ± 0.00069 cm-1 and 1698.06400 ± 0.00033 cm- 1 are located. These bands were not previously analyzed and investigated in this work for the first time. 164 energies of the upper levels belonging to the investigated states were used in the fitting of spectroscopic parameters. As a result, we have obtained 10 parameters of the diagonal blocks of the effective Hamiltonian describing the vibrational-rotational structures of the 2ν₇ and ν₆ + ν₁₀ bands, and also 5 resonance parameters of the c-type Coriolis interaction.

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Keywords

молекула C₂H₂D₂-cis, этилен, эффективный гамильтониан, C₂H₂D₂-cis molecule, ethylene, effective Hamiltonian

Authors

Name	Organization	E-mail
Konova Y.V.	National Research Tomsk Polytechnic University	ch-yuliya28@mail.ru
Konov I.A.	National Research Tomsk State University	kiaff1188@mail.ru
Ziatkova A.G.	National Research Tomsk Polytechnic University	anastasia.litvinovskaya@mail.ru

Всего: 3

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