WebElements Periodic Table of the Elements | Bismuth

Bismuth compounds: dibismuth triselenide

The bismuth in dibismuth triselenide formally is in the oxidation state 3.

Dibismuth triselenide

Formula as often written: Bi₂Se₃
Hill system formula: Bi₂Se₃
CAS registry number: [12068-69-8]
Formula weight: 654.841
Class: selenide

Synonyms

dibismuth triselenide
bismuth(III) selenide
bismuth selenide
bismuth sesqiselenide

Physical properties

Colour: black
Appearance: crystalline solid
Melting point: 710°C; 706°C (decomposes)
Boiling point:
Density: 7500 kg m^-3; 7700 kg m^-3

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Element analysis

Element percentages for the elements in dibismuth triselenide
Element	%
Bi	63.83
Se	36.17

Synthesis

Not available

Solid state structure

Geometry of bismuth:
Prototypical structure:

Crystal structure of dibismuth triselenide

Isotope pattern

What follows is the calculated isotope pattern for the Bi₂Se₃ unit with the most intense ion set to 100%.

Formula: Bi₂Se₃

mass  %
642   0.0 
643   0.0 
644   0.1 
645   0.0 
646   0.9 
647   0.1 
648   4.5 __
649   0.6 
650  15.8 ________
651   1.6 _
652  40.3 ____________________
653   2.7 _
654  76.2 ______________________________________
655   3.1 __
656 100.0 __________________________________________________
657   1.0 
658  88.2 ____________________________________________
659   0.1 
660  34.5 _________________
661   0.0 
662   5.9 ___
663   0.0 
664   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.