Molecular structure and vibrational characteristics of thorium tetrafluoride

  • G. V. Girichev
  • A. V. Krasnov
  • N. I. Giricheva
  • O. G. Krasnova


The molecular structure of ThF4 is studied by synchrotron electron diffractometry and mass spectrometry. The thermally mean values of internuclear distances are found at a temperature of 1370±20 K: rg(Th-F) = 2.124(5) å, rg(F-F) = 3.418(31) å, δ(F-F) = 0.049(32) å, and LF-Th-F = 107.2(1.7)‡. These distances agree with the tetrahedral structure of the molecule. The missing vibration frequencies of the ThF4 molecule are calculated in a combined analysis of electron diffraction and spectroscopic data: v1 = 620(30) cm-1 and v2 = 115(15) cm-1.


Internuclear Distance Tetrahedral Structure Vibrational Amplitude Electron Diffraction Data Electron Diffractograms 
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Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • G. V. Girichev
    • 1
    • 2
  • A. V. Krasnov
    • 1
    • 2
  • N. I. Giricheva
    • 1
    • 2
  • O. G. Krasnova
    • 1
    • 2
  1. 1.Ivanovo State Chemical Technological UniversityRussia
  2. 2.Ivanovo State UniversityRussia

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