WebElements mini logoChemistry: WebElements Periodic Table: Professional Edition: Germanium: compound data [germanium (II) fluoride]
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Germanium

32
Ge
72.64(1)
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Compounds of germanium:

germanium (II) fluoride

  • Formula as commonly written: GeF2
  • Hill system formula: F2Ge1
  • CAS registry number: [13940-63-1]
  • Formula weight: 110.607
  • Class: fluoride

Synonyms

  • germanium (II) fluoride
  • germanium difluoride
  • germanium fluoride

Physical properties

  • Colour: white
  • Appearance: crystalline solid
  • Melting point: 110°C
  • Boiling point: 130°C
  • Density: 3640 kg m-3

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Element analysis and oxidation numbers

For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
Element % Formal oxidation state Formal electronic configuration
F 34.35 -1 [He].2s2.2p6
Ge 65.65 2 [Ar].3d10.4s2

Synthesis

Not available

Solid state structure

  • Geometry of germanium:
  • Prototypical structure:

Crystal structure of germanium (II) fluoride

Isotope pattern

What follows is the calculated isotope pattern for the GeF2 unit with the most intense ion set to 100%.

Formula: Ge1F2

mass  %
108  59.1 ______________________________
109 0.0
110 77.0 ______________________________________
111 21.5 ___________
112 100.0 __________________________________________________
113 0.0
114 20.7 __________

References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

  • R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
  • N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
  • F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
  • A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
  • R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
  • A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
  • A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
  • J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
  • D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
  • J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
  • J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.
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