Selenium compounds: tetraselenium tetrasulphide

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The selenium in tetraselenium tetrasulphide formally is in the oxidation state 2.

Tetraselenium tetrasulphide

  • Formula as often written: Se4S4
  • Hill system formula: S4Se4
  • CAS registry number: [75926-28-2]
  • Formula weight: 444.104
  • Class: sulphide

Synonyms

  • tetraselenium tetrasulphide
  • selenium(II) sulphide
  • selenium(II) sulfide
  • tetraselenium tetrasulfide

Physical properties

  • Colour: red
  • Appearance: crystalline solid
  • Melting point: 113°C (decomposes)
  • Boiling point:
  • Density: 3300 kg m-3

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Element analysis

Element percentages for the elements in tetraselenium tetrasulphide
Element %
S 28.88
Se 71.12

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the Se4S4 unit with the most intense ion set to 100%.

Formula: Se4S4

mass  %
430   0.0 
431 0.0
432 0.2
433 0.0
434 0.9
435 0.2
436 3.7 __
437 0.6
438 11.6 ______
439 1.8 _
440 29.1 _______________
441 3.6 __
442 57.2 _____________________________
443 5.4 ___
444 87.5 ____________________________________________
445 6.1 ___
446 100.0 __________________________________________________
447 4.7 __
448 81.6 _________________________________________
449 2.9 _
450 41.0 ____________________
451 1.2 _
452 12.4 ______
453 0.3
454 2.3 _
455 0.1
456 0.3
457 0.0
458 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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