WebElements Periodic Table of the Elements | Holmium

Holmium compounds: diholmium triselenide

The holmium in diholmium triselenide formally is in the oxidation state 3.

Diholmium triselenide

Formula as often written: Ho₂Se₃
Hill system formula: Ho₂Se₃
CAS registry number: [12162-60-6]
Formula weight: 566.741
Class: selenide

Synonyms

diholmium triselenide
holmium(III) selenide
holmium selenide

Physical properties

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

Suppliers

Coming soon...

Element analysis

Element percentages for the elements in diholmium triselenide
Element	%
Ho	58.20
Se	41.80

Synthesis

Not available

Solid state structure

Geometry of holmium:
Prototypical structure:

Crystal structure of diholmium triselenide

Isotope pattern

What follows is the calculated isotope pattern for the Ho₂Se₃ unit with the most intense ion set to 100%.

Formula: Ho₂Se₃

mass  %
554   0.0 
555   0.0 
556   0.1 
557   0.0 
558   0.9 
559   0.1 
560   4.5 __
561   0.6 
562  15.8 ________
563   1.6 _
564  40.3 ____________________
565   2.7 _
566  76.2 ______________________________________
567   3.1 __
568 100.0 __________________________________________________
569   1.0 
570  88.2 ____________________________________________
571   0.1 
572  34.5 _________________
573   0.0 
574   5.9 ___
575   0.0 
576   0.4

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.