Dierbium triselenide

Erbium compounds: dierbium triselenide

The erbium in dierbium triselenide formally is in the oxidation state 3.

Dierbium triselenide

• Formula as often written: Er₂Se₃
• Hill system formula: Er₂Se₃
• CAS registry number: [12020-38-1]
• Formula weight: 571.4
• Class: selenide

Synonyms

• dierbium triselenide
• erbium(III) selenide
• erbium selenide

Physical properties

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

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Element analysis

Element percentages for the elements in dierbium triselenide

Element	%
Er	58.54
Se	41.46

Synthesis

Not available

Solid state structure

• Geometry of erbium:
• Prototypical structure:

Isotope pattern

What follows is the calculated isotope pattern for the Er₂Se₃ unit with the most intense ion set to 100%.

Formula: Er₂Se₃

mass  %
556   0.0 
557   0.0 
558   0.1 
559   0.1 
560   0.4 
561   0.4 
562   2.0 _
563   2.1 _
564   7.3 ____
565   7.2 ____
566  20.7 __________
567  19.0 __________
568  45.7 _______________________
569  38.1 ___________________
570  77.6 _______________________________________
571  56.7 ____________________________
572 100.0 __________________________________________________
573  61.9 _______________________________
574  95.1 ________________________________________________
575  45.0 ______________________
576  64.7 ________________________________
577  21.7 ___________
578  31.8 ________________
579   6.0 ___
580  11.1 ______
581   0.8 
582   2.5 _
583   0.0 
584   0.3 
585   0.0 
586   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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