Digold hexabromide

  • Formula: [AuBr3]2
  • Hill system formula: Au2Br6
  • CAS registry number: [10294-28-7]
  • Formula weight: 873.357
  • Class: bromide
  • Colour: red-brown
  • Appearance: crystalline solid
  • Melting point: 160°C (decomposes)
  • Boiling point:
  • Density:

The following are some synonyms of digold hexabromide:

  • digold hexabromide
  • gold(III) bromide
  • auric bromide
  • gold bromide
  • gold tribromide

The oxidation number of gold in digold hexabromide is 3.


Au + Br2 (140°C) → Au2Br6

dimer [11092-53-8]

Solid state structure

  • Geometry of gold: 4 coordinate: square planar
  • Prototypical structure:
Crystal structure of digold hexabromide.
Crystal structure of digold hexabromide.

Element analysis

The table shows element percentages for [AuBr3]2 (digold hexabromide).

Element %
Au 45.11
Br 54.89

Isotope pattern for [AuBr3]2

The chart below shows the calculated isotope pattern for the formula [AuBr3]2 with the most intense ion set to 100%.


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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