Arsenic compounds: diarsenic pentaselenide

arsenic symbol icon

The arsenic in diarsenic pentaselenide formally is in the oxidation state 5.

Diarsenic pentaselenide

  • Formula as often written: As2Se5
  • Hill system formula: As2Se5
  • CAS registry number: [1303-37-3]
  • Formula weight: 544.643
  • Class: selenide

Synonyms

  • diarsenic pentaselenide
  • arsenic(V) selenide
  • arsenic selenide

Physical properties

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

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Element analysis

Element percentages for the elements in diarsenic pentaselenide
Element %
As 27.51
Se 72.49

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the As2Se5 unit with the most intense ion set to 100%.

Formula: As2Se5

mass  %
530   0.0 
531 0.0
532 0.2
533 0.0
534 1.0
535 0.2
536 3.6 __
537 0.6
538 10.5 _____
539 1.5 _
540 25.2 _____________
541 2.8 _
542 49.5 _________________________
543 4.2 __
544 78.9 _______________________________________
545 4.7 __
546 100.0 __________________________________________________
547 3.5 __
548 97.0 ________________________________________________
549 1.5 _
550 68.2 __________________________________
551 0.4
552 31.0 ________________
553 0.0
554 8.6 ____
555 0.0
556 1.4 _
557 0.0
558 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.

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arsenic atomic number