Osmium compounds: diammonium hexachloroosmiate

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The osmium in diammonium hexachloroosmiate formally is in the oxidation state 4.

Diammonium hexachloroosmiate

  • Formula as often written: (NH4)2[OsCl6]
  • Hill system formula: Cl6H8N2Os1
  • CAS registry number: [12125-08-5]
  • Formula weight: 439.023
  • Class: complex

Synonyms

  • diammonium hexachloroosmiate
  • ammonium hexachloroosmiate(IV)

Physical properties

  • Colour:
  • Appearance: crystalline solid
  • Melting point: 170°C, sublimes
  • Boiling point:
  • Density: 2900

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Element analysis

Element percentages for the elements in diammonium hexachloroosmiate
Element %
Cl 48.45
H 1.84
N 6.38
Os 43.33

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the (NH4)2[OsCl6] unit with the most intense ion set to 100%.

Formula: N2H8Os1Cl6

mass  %
430   0.0 
431 0.0
432 1.3 _
433 1.3 _
434 12.8 ______
435 15.0 ________
436 42.5 _____________________
437 26.3 _____________
438 88.4 ____________________________________________
439 20.8 __________
440 100.0 __________________________________________________
441 9.2 _____
442 64.2 ________________________________
443 2.5 _
444 24.4 ____________
445 0.5
446 5.4 ___
447 0.1
448 0.7
449 0.0
450 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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