High resolution FTIR study of the ν71010 and ν101210 "hot" bands of C2H4

O. N. Ulenikov, O. V. Gromova, E. S. Bekhtereva, G. A. Onopenko, Yu S. Aslapovskaya, K. H. Gericke, S. Bauerecker, V. M. Horneman

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Abstract

Two weak "hot" absorption bands, ν71010 and ν101210, of ethylene, C2H4, were analyzed for the first time with high resolution using the Fourier transform interferometer Bruker IFS-120 HR. As the result of analysis we assigned about 930 and 370 transitions (404 and 185 upper state ro-vibrational energy values) with Jmax.=27, Kamax.=14 and Jmax.=20, Kamax.=9 for the bands ν71010 and ν101210, respectively. Strong local resonance interactions of the vibrational state (v10=v12=1) with the five other states, and of the state (v7=v10=1) with the seven other states were taken into account, and a set of 77 varied parameters, which reproduce the initial experimental data with the rms deviation of 6.1×10-4cm-1 which is close to experimental uncertainties, was obtained.

Original languageEnglish
Pages (from-to)318-333
Number of pages16
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume149
DOIs
Publication statusPublished - 1 Dec 2014

Keywords

  • Ethylene
  • High-resolution spectra
  • Spectroscopic parameters

ASJC Scopus subject areas

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

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