Structural Chemistry

, Volume 9, Issue 5, pp 349–352

Molecular Structure of Silicon Tetraiodide

  • Maria Kolonits
  • Magdolna Hargittai

DOI: 10.1023/A:1022462926682

Cite this article as:
Kolonits, M. & Hargittai, M. Structural Chemistry (1998) 9: 349. doi:10.1023/A:1022462926682


The molecular geometry of silicon tetraiodide was determined by gas-phase electron diffraction at 378 K. The molecule has a regular tetrahedral shape with an Si—I bond length (rg) of 2.432(5) Å and an I⋅⋅⋅I nonbonded distance (rg) of 3.971(8) Å. There is an apparent anharmonicity in both the stretching and the bending vibrations, with the latter especially pronounced.

Silicon tetraiodidemolecular structureelectron diffractionnormal coordinate analysis

Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • Maria Kolonits
    • 1
  • Magdolna Hargittai
    • 1
  1. 1.Structural Chemistry Research Group of the Hungarian Academy of SciencesEötvös UniversityBudapestHungary