Optics and Spectroscopy

, Volume 98, Issue 2, pp 227–234

Integral intensities of absorption bands of silicon tetrafluoride in the gas phase and cryogenic solutions: Experiment and calculation

  • A. P. Burtsev
  • V. N. Bocharov
  • S. K. Ignatov
  • T. D. Kolomiitsova
  • P. G. Sennikov
  • K. G. Tokhadze
  • L. A. Chuprov
  • D. N. Shchepkin
  • O. Schrems
Molecular Spectroscopy

DOI: 10.1134/1.1870065

Cite this article as:
Burtsev, A.P., Bocharov, V.N., Ignatov, S.K. et al. Opt. Spectrosc. (2005) 98: 227. doi:10.1134/1.1870065

Abstract

The spectral characteristics of the SiF4 molecule in the range 3100–700 cm−1, including the absorption range of the band ν3, are studied in the gas phase at P = 0.4–7 bar and in solutions in liquefied Ar and Kr. In the cryogenic solutions, the relative intensities of the vibrational bands, including the bands of the isotopically substituted molecules, are determined. The absorption coefficients of the combination bands 2ν3, ν3 + ν1, ν3 + ν4, and 3ν4 are measured in the solution in Kr. In the gas phase of the one-component system at an elevated pressure of SiF4, the integrated absorption coefficient of the absorption band ν3 of the 28SiF4 molecule was measured to be A3) = 700 ± 30 km/mol. Within the limits of experimental error, this absorption coefficient is consistent with estimates obtained from independent measurements and virtually coincides with the coefficient A3) = 691 km/mol calculated in this study by the quantum-chemical method MP2(full) with the basis set cc-pVQZ.

Copyright information

© Pleiades Publishing, Inc. 2005

Authors and Affiliations

  • A. P. Burtsev
    • 1
  • V. N. Bocharov
    • 1
  • S. K. Ignatov
    • 2
  • T. D. Kolomiitsova
    • 1
  • P. G. Sennikov
    • 3
  • K. G. Tokhadze
    • 1
  • L. A. Chuprov
    • 3
  • D. N. Shchepkin
    • 1
  • O. Schrems
    • 4
  1. 1.Institute of PhysicsSt. Petersburg State UniversityPeterhof, St. PetersburgRussia
  2. 2.Nizhni Novgorod State UniversityNizhni NovgorodRussia
  3. 3.Institute of High-Purity SubstancesRussian Academy of SciencesNizhni NovgorodRussia
  4. 4.Alfred Wegener Institute for Polar and Marine ResearchBremerhavenGermany