WebElements Periodic Table of the Elements | Phosphorus

Phosphorus compounds: tetraphosphorus triselenide

The phosphorus in tetraphosphorus triselenide formally is in the oxidation state .

Tetraphosphorus triselenide

Formula as often written: P₄Se₃
Hill system formula: P₄Se₃
CAS registry number: [1314-86-9]
Formula weight: 360.775
Class: selenide

Synonyms

tetraphosphorus triselenide
phosphorus selenide
phosphorus triselenide

Physical properties

Colour: orange-red
Appearance: crystalline solid
Melting point: 245°C
Boiling point: 380°C
Density: 1310 kg m^-3

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Element analysis

Element percentages for the elements in tetraphosphorus triselenide
Element	%
P	34.34
Se	65.66

Synthesis

Not available

Solid state structure

Geometry of phosphorus: 3 coordinate: pyramidal
Prototypical structure:

Crystal structure of tetraphosphorus triselenide

Isotope pattern

What follows is the calculated isotope pattern for the P₄Se₃ unit with the most intense ion set to 100%.

Formula: P₄Se₃

mass  %
348   0.0 
349   0.0 
350   0.1 
351   0.0 
352   0.9 
353   0.1 
354   4.5 __
355   0.6 
356  15.8 ________
357   1.6 _
358  40.3 ____________________
359   2.7 _
360  76.2 ______________________________________
361   3.1 __
362 100.0 __________________________________________________
363   1.0 
364  88.2 ____________________________________________
365   0.1 
366  34.5 _________________
367   0.0 
368   5.9 ___
369   0.0 
370   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.