Selenium compounds: diselenium dichloride

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The selenium in diselenium dichloride formally is in the oxidation state 1.

Crystal structure of diselenium dichloride

Diselenium dichloride

  • Formula as often written: Se2Cl2
  • Hill system formula: Cl2Se2
  • CAS registry number: [10025-68-0]
  • Formula weight: 228.825
  • Class: chloride

Synonyms

  • diselenium dichloride
  • selenium(I) chloride
  • selenium chloride

Physical properties

  • Colour: yellow-brown
  • Appearance: liquid
  • Melting point: -85°C
  • Boiling point: 130°C
  • Density: 2774 kg m-3

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Element analysis

Element percentages for the elements in diselenium dichloride
Element %
Cl 30.99
Se 69.01

Synthesis

Not available

Solid state structure

  • Geometry of selenium:
  • Prototypical structure:

Crystal structure of diselenium dichloride

Isotope pattern

What follows is the calculated isotope pattern for the Se2Cl2 unit with the most intense ion set to 100%.

Formula: Se2Cl2

mass  %
218   0.0 
219 0.0
220 0.4
221 0.0
222 2.9 _
223 0.3
224 12.8 ______
225 1.0
226 38.8 ___________________
227 2.1 _
228 75.2 ______________________________________
229 1.4 _
230 100.0 __________________________________________________
231 0.4
232 65.0 ________________________________
233 0.0
234 20.7 __________
235 0.0
236 3.2 __
237 0.0
238 0.2

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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