Thallium compounds: dithallium tetrabromide

thallium symbol icon

The thallium in dithallium tetrabromide formally is in the oxidation state 1, 3.

Crystal structure of dithallium tetrabromide

Dithallium tetrabromide

  • Formula as often written: Tl2Br4
  • Hill system formula: Br4Tl2
  • CAS registry number: [13453-28-6]
  • Formula weight: 728.383
  • Class: bromide

Synonyms

  • dithallium tetrabromide
  • thallium (I, III) bromide
  • thallium bromide

Physical properties

  • Colour: pale brown
  • Appearance: solid
  • Melting point:
  • Boiling point:
  • Density:

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Element analysis

Element percentages for the elements in dithallium tetrabromide
Element %
Br 43.88
Tl 56.12

Synthesis

This is actually Tl(I)[Tl(III)Br4]

Solid state structure

  • Geometry of thallium:
  • Prototypical structure:

Crystal structure of dithallium tetrabromide

Isotope pattern

What follows is the calculated isotope pattern for the Tl2Br4 unit with the most intense ion set to 100%.

Formula: Tl2Br4

mass  %
722   1.9 _
723 0.0
724 16.4 ________
725 0.0
726 56.6 ____________________________
727 0.0
728 100.0 __________________________________________________
729 0.0
730 96.0 ________________________________________________
731 0.0
732 47.7 ________________________
733 0.0
734 9.6 _____

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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thallium atomic number