WebElements Periodic Table of the Elements | Praseodymium

Praseodymium compounds: praseodymium trichloride

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

Praseodymium trichloride

Formula as often written: PrCl₃
Hill system formula: Cl₃Pr₁
CAS registry number: [10361-79-2]
Formula weight: 247.266
Class: chloride

Synonyms

praseodymium trichloride
praseodymium(III) chloride
praseodymium chloride

Physical properties

Colour: green
Appearance: crystalline solid
Melting point: 786°C
Boiling point: 1710
Density: 4000 kg m^-3

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Element analysis

Element percentages for the elements in praseodymium trichloride
Element	%
Cl	43.01
Pr	56.99

Synthesis

Not available

Solid state structure

Geometry of praseodymium: 9 coordinate: tricapped trigonal prismatic
Prototypical structure:

Crystal structure of praseodymium trichloride

Isotope pattern

What follows is the calculated isotope pattern for the PrCl₃ unit with the most intense ion set to 100%.

Formula: Pr₁Cl₃

mass  %
246 100.0 __________________________________________________
247   0.0 
248  95.9 ________________________________________________
249   0.0 
250  30.7 _______________
251   0.0 
252   3.3 __

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.