Tungsten compounds: tungsten hexabromide

tungsten symbol icon

The tungsten in tungsten hexabromide formally is in the oxidation state 6.

Crystal structure of tungsten hexabromide

Tungsten hexabromide

  • Formula as often written: WBr6
  • Hill system formula: Br6W1
  • CAS registry number: [13701-86-5]
  • Formula weight: 663.264
  • Class: bromide

Synonyms

  • tungsten hexabromide
  • tungsten(VI) bromide
  • tungsten bromide

Physical properties

  • Colour: dark-blue to black
  • Appearance: crystalline solid
  • Melting point: 309°C
  • Boiling point: sublimes at 327
  • Density:

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Element analysis

Element percentages for the elements in tungsten hexabromide
Element %
Br 72.28
W 27.72

Synthesis

Not available

Solid state structure

  • Geometry of tungsten: 6 coordinate: octahedral
  • Prototypical structure:

Crystal structure of tungsten hexabromide

Isotope pattern

What follows is the calculated isotope pattern for the WBr6 unit with the most intense ion set to 100%.

Formula: W1Br6

mass  %
654   0.0 
655 0.0
656 2.0 _
657 1.1 _
658 14.0 _______
659 6.3 ___
660 44.0 ______________________
661 15.3 ________
662 82.2 _________________________________________
663 19.9 __________
664 100.0 __________________________________________________
665 14.5 _______
666 81.2 _________________________________________
667 5.6 ___
668 42.8 _____________________
669 0.9
670 13.2 _______
671 0.0
672 1.8 _

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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tungsten atomic number