WebElements Periodic Table of the Elements | Iridium

Iridium compounds: iridium trichloride

The iridium in iridium trichloride formally is in the oxidation state 3.

Iridium trichloride

Formula as often written: IrCl₃
Hill system formula: Cl₃Ir₁
CAS registry number: [10025-83-9]
Formula weight: 298.575
Class: chloride

Synonyms

iridium trichloride
iridium(III) chloride
iridium chloride

Physical properties

Colour: red or brown
Appearance: crystalline solid
Melting point: 763°C (decomposes)
Boiling point:
Density: 5300 kg m^-3

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Element analysis

Element percentages for the elements in iridium trichloride
Element	%
Cl	35.62
Ir	64.38

Synthesis

Not available

Solid state structure

Geometry of iridium:
Prototypical structure:

Crystal structure of iridium trichloride

Isotope pattern

What follows is the calculated isotope pattern for the IrCl₃ unit with the most intense ion set to 100%.

Formula: Ir₁Cl₃

mass  %
296  37.9 ___________________
297   0.0 
298 100.0 __________________________________________________
299   0.0 
300  72.7 ____________________________________
301   0.0 
302  20.8 __________
303   0.0 
304   2.1 _

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.