|Compounds of sodium:|
sodium (I) selenide
- Formula as commonly written: Na2Se
- Hill system formula: Na2Se1
- CAS registry number: [1313-85-5]
- Formula weight: 124.94
- Class: selenide
- sodium (I) selenide
- sodium selenide
- disodium selenide
- Appearance: solid
- Melting point: >875°C
- Boiling point:
- Density: 2620 kg m-3
Element analysis and oxidation numbersFor each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
|Element||%||Formal oxidation state||Formal electronic configuration|
| Na|| 36.80||1||[Ne]|
| Se|| 63.20||-2||[Ar].3d10.4s2.4p6|
Solid state structure
- Geometry of sodium:
- Prototypical structure:
What follows is the calculated isotope pattern for the Na2Se unit with the most intense ion set to 100%.
mass %120 1.8 _
122 18.1 _________
123 1.5 _
124 47.5 ________________________
126 100.0 __________________________________________________
128 18.5 _________
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.