The molecular geometry of iron trifluoride from electron diffraction and a reinvestigation of aluminum trifluoride

  title={The molecular geometry of iron trifluoride from electron diffraction and a reinvestigation of aluminum trifluoride},
  author={Magdolna Hargittai and M. Kolonits and J. Tremmel and Jean Louis Fourquet and Gérard Férey},
  journal={Structural Chemistry},
The molecular geometry of iron trifluoride has been determined at 1260 K by gas-phase electron diffraction. Use of a platinum envelope during the experiment prevented the iron trifluoride sample from partial reduction otherwise observed at high temperatures. The molecular geometry of aluminum trifluoride has been reinvestigated at 1300 K. The electron diffraction results for both AlF3 and FeF3 are compatible with planar bond configuration (D3hsymmetry) with bond lengths (rg): Al-F 1.630±0.003… 
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Dissertation abstract
A theoretical model of a knowledge-based information retrieval system developed in this thesis specifies the requirements and properties, of such a system, and a novel term-similarity function could be defined.