Tungsten compounds: tungsten trichloride

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The tungsten in tungsten trichloride formally is in the oxidation state 3.

Crystal structure of tungsten trichloride

Tungsten trichloride

  • Formula as often written: [W6Cl12]Cl6
  • Hill system formula: Cl18W6
  • CAS registry number: [20193-56-0]
  • Formula weight: 1741.189
  • Class: chloride

Synonyms

  • tungsten trichloride
  • tungsten(III) chloride
  • tungsten chloride

Physical properties

  • Colour: red
  • Appearance: crystalline solid
  • Melting point: 470°C (decomposes to WCl2 + WCl5)
  • Boiling point:
  • Density:

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Element analysis

Element percentages for the elements in tungsten trichloride
Element %
Cl 36.65
W 63.35

Synthesis

Not available

Solid state structure

  • Geometry of tungsten:
  • Prototypical structure:

Crystal structure of tungsten trichloride

Isotope pattern

What follows is the calculated isotope pattern for the [W6Cl12]Cl6 unit with the most intense ion set to 100%.

Formula: W6Cl18

mass  %
1721   0.0 
1722 0.0
1723 0.0
1724 0.0
1725 0.1
1726 0.4
1727 0.7
1728 1.7 _
1729 2.8 _
1730 5.7 ___
1731 8.2 ____
1732 14.7 _______
1733 18.8 _________
1734 30.4 _______________
1735 35.0 __________________
1736 52.0 __________________________
1737 54.1 ___________________________
1738 75.2 ______________________________________
1739 70.8 ___________________________________
1740 93.2 _______________________________________________
1741 79.2 ________________________________________
1742 100.0 __________________________________________________
1743 76.4 ______________________________________
1744 93.6 _______________________________________________
1745 63.9 ________________________________
1746 76.9 ______________________________________
1747 46.4 _______________________
1748 55.6 ____________________________
1749 29.4 _______________
1750 35.5 __________________
1751 16.2 ________
1752 20.0 __________
1753 7.7 ____
1754 9.9 _____
1755 3.2 __
1756 4.3 __
1757 1.2 _
1758 1.7 _
1759 0.4
1760 0.6
1761 0.1
1762 0.2
1763 0.0
1764 0.0
1765 0.0
1766 0.0

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