Osmium tetrachloride

Osmium compounds: osmium tetrachloride

The osmium in osmium tetrachloride formally is in the oxidation state 4.

Osmium tetrachloride

• Formula as often written: OsCl₄
• Hill system formula: Cl₄Os₁
• CAS registry number: [10026-01-4]
• Formula weight: 332.041
• Class: chloride

Synonyms

• osmium tetrachloride
• osmium(IV) chloride
• osmium chloride

Physical properties

• Colour: red (a black form exists)
• Appearance: crystalline solid
• Melting point:
• Boiling point: 450°C
• Density: 4380 kg m^-3

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Element analysis

Element percentages for the elements in osmium tetrachloride

Element	%
Cl	42.71
Os	57.29

Synthesis

Not available

Solid state structure

• Geometry of osmium:
• Prototypical structure:

Isotope pattern

What follows is the calculated isotope pattern for the OsCl₄ unit with the most intense ion set to 100%.

Formula: Os₁Cl₄

mass  %
324   0.0 
325   0.0 
326   1.9 _
327   1.9 _
328  18.4 _________
329  21.8 ___________
330  53.4 ___________________________
331  25.9 _____________
332 100.0 __________________________________________________
333  12.1 ______
334  84.7 __________________________________________
335   2.6 _
336  34.6 _________________
337   0.2 
338   6.8 ___
339   0.0 
340   0.5 

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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