WebElements Periodic Table of the Elements | Dysprosium

Dysprosium compounds: didysprosium triselenide

The dysprosium in didysprosium triselenide formally is in the oxidation state 3.

Didysprosium triselenide

Formula as often written: Dy₂Se₃
Hill system formula: Dy₂Se₃
CAS registry number: [12020-04-1]
Formula weight: 561.88
Class: selenide

Synonyms

didysprosium triselenide
dysprosium(III) selenide
dysprosium selenide

Physical properties

Colour:
Appearance: solid
Melting point:
Boiling point:
Density:

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Element analysis

Element percentages for the elements in didysprosium triselenide
Element	%
Dy	57.84
Se	42.16

Synthesis

Not available

Solid state structure

Geometry of dysprosium:
Prototypical structure:

Crystal structure of didysprosium triselenide

Isotope pattern

What follows is the calculated isotope pattern for the Dy₂Se₃ unit with the most intense ion set to 100%.

Formula: Dy₂Se₃

mass  %
547   0.0 
548   0.0 
549   0.1 
550   0.2 
551   0.5 
552   1.0 
553   2.2 _
554   4.3 __
555   7.9 ____
556  13.7 _______
557  22.2 ___________
558  33.7 _________________
559  48.6 ________________________
560  64.1 ________________________________
561  80.9 ________________________________________
562  92.6 ______________________________________________
563 100.0 __________________________________________________
564  98.3 _________________________________________________
565  86.5 ___________________________________________
566  72.3 ____________________________________
567  47.1 ________________________
568  33.7 _________________
569  13.9 _______
570   8.9 ____
571   2.0 _
572   1.2 _
573   0.1 
574   0.1

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.