νHF band shape in Xe...HF, OC...HF complexes in transition from dilute gas to condensed systems

K. G. Tokhadze, S. S. Utkina, N. N. Filippov, Z. Mielke

Research output

2 Citations (Scopus)

Abstract

The shape of the vibration-rotation ν(HF) band is studied in HF/Xe and HF/CO mixtures at increasing Xe (or CO) density from gaseous to liquid phase at 293 K. The evolution of the ν(HF) band is determined by coexistence of ensembles of free and complexed molecules. The band of free HF molecules is calculated using the super-Lorentzian profile for rotational HF lines. The νHF bands of the Xe... HF, OC...HF and CO... HF complexes, which appear in the absorption region of P(1) and P(1)-P(4) rotational lines of HF, are formed by superposition of the vibration-rotation bands due to hot transitions from excited levels of the low-frequency intermolecular modes. The νHF bands in the complexes experience a low-frequency shift and become more symmetric with increasing density. A model taking into account spectral exchange between overlapping lines provides correct description of the complex band shape evolution with increasing density.

Original languageEnglish
Title of host publication12TH SYMPOSIUM AND SCHOOL ON HIGH-RESOLUTION MOLECULAR SPECTROSCOPY
EditorsLN Sinitsa, YN Ponomarev, Perevalov
PublisherSPIE
Pages250-254
Number of pages5
ISBN (Print)0-8194-2505-2
DOIs
Publication statusPublished - 1 Dec 1997
Event12th Symposium and School on High-Resolution Molecular Spectroscopy - St. Petersburg
Duration: 1 Jul 19961 Jul 1996

Publication series

NamePROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
PublisherSPIE - INT SOC OPTICAL ENGINEERING
Volume3090

Conference

Conference12th Symposium and School on High-Resolution Molecular Spectroscopy
CountryRussian Federation
CitySt. Petersburg
Period1/07/961/07/96

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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