Osmium compounds: hexaosmium octadecacarbonyl

osmium symbol icon

The osmium in hexaosmium octadecacarbonyl formally is in the oxidation state 0.

Hexaosmium octadecacarbonyl

  • Formula as often written: Os6(CO)18
  • Hill system formula: C18O18Os6
  • CAS registry number: [37216-50-5]
  • Formula weight: 1645.562
  • Class: carbonyl complex organometallic

Synonyms

  • hexaosmium octadecacarbonyl
  • osmium(O) carbonyl
  • osmium carbonyl
  • osmium octadecacarbonyl

Physical properties

  • Colour: dark brown
  • Appearance: crystalline solid
  • Melting point:
  • Boiling point:
  • Density:

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Element analysis

Element percentages for the elements in hexaosmium octadecacarbonyl
Element %
C 13.14
O 17.50
Os 69.36

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the Os6(CO)18 unit with the most intense ion set to 100%.

Formula: Os6C18O18

mass  %
1630   0.0 
1631 0.1
1632 0.3
1633 0.7
1634 1.5 _
1635 3.0 __
1636 5.5 ___
1637 9.4 _____
1638 15.4 ________
1639 23.3 ____________
1640 34.0 _________________
1641 45.8 _______________________
1642 60.2 ______________________________
1643 72.5 ____________________________________
1644 86.4 ___________________________________________
1645 92.3 ______________________________________________
1646 100.0 __________________________________________________
1647 93.8 _______________________________________________
1648 93.5 _______________________________________________
1649 74.3 _____________________________________
1650 69.5 ___________________________________
1651 44.4 ______________________
1652 40.6 ____________________
1653 17.5 _________
1654 18.5 _________
1655 3.9 __
1656 4.8 __
1657 0.9
1658 0.2
1659 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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osmium atomic number