Triosmium dodecacarbonyl

Osmium compounds: triosmium dodecacarbonyl

The osmium in triosmium dodecacarbonyl formally is in the oxidation state 0.

Triosmium dodecacarbonyl

• Formula as often written: Os₃(CO)₁₂
• Hill system formula: C₁₂O₁₂Os₃
• CAS registry number: [15696-40-9]
• Formula weight: 906.811
• Class: carbonyl complex organometallic

Synonyms

• triosmium dodecacarbonyl
• osmium(O) carbonyl
• osmium carbonyl
• osmium dodecacarbonyl

Physical properties

• Colour: yellow
• Appearance: crystalline solid
• Melting point:
• Boiling point: 224°C
• Density: 3480 kg m^-3

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Element analysis

Element percentages for the elements in triosmium dodecacarbonyl

Element	%
C	15.89
O	21.17
Os	62.93

Synthesis

Not available

Solid state structure

• Geometry of osmium:
• Prototypical structure:

Isotope pattern

What follows is the calculated isotope pattern for the Os₃(CO)₁₂ unit with the most intense ion set to 100%.

Formula: Os₃C₁₂O₁₂

mass  %
896   0.1 
897   0.2 
898   0.9 
899   2.1 _
900   5.8 ___
901  11.2 ______
902  23.2 ____________
903  33.8 _________________
904  55.0 ____________________________
905  63.7 ________________________________
906  92.8 ______________________________________________
907  78.5 _______________________________________
908 100.0 __________________________________________________
909  61.4 _______________________________
910  86.4 ___________________________________________
911  12.5 ______
912  42.5 _____________________
913   5.8 ___
914   1.3 _
915   0.1 
916   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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