Uranium compounds: uranium hexachloride

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The uranium in uranium hexachloride formally is in the oxidation state 6.

Crystal structure of uranium hexachloride

Uranium hexachloride

  • Formula as often written: UCl6
  • Hill system formula: Cl6U1
  • CAS registry number: [13763-23-0]
  • Formula weight: 450.745
  • Class: chloride

Synonyms

  • uranium hexachloride
  • uranium(VI) chloride
  • uranium chloride

Physical properties

  • Colour: dark green
  • Appearance: crystalline solid
  • Melting point: 177°C
  • Boiling point: 75°C
  • Density: 3600 kg m-3

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Element analysis

Element percentages for the elements in uranium hexachloride
Element %
Cl 47.19
U 52.81

Synthesis

Not available

Solid state structure

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

Crystal structure of uranium hexachloride

Isotope pattern

What follows is the calculated isotope pattern for the UCl6 unit with the most intense ion set to 100%.

Formula: U1Cl6

mass  %
444   0.0 
445 0.4
446 0.0
447 0.7
448 52.1 __________________________
449 0.6
450 100.0 __________________________________________________
451 0.2
452 80.0 ________________________________________
453 0.1
454 34.1 _________________
455 0.0
456 8.2 ____
457 0.0
458 1.0
459 0.0
460 0.1

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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