- Formula: SeF6
- Hill system formula: F6Se1
- CAS registry number: [7783-79-1]
- Formula weight: 192.95
- Class: fluoride
- Colour: colourless
- Appearance: gas
- Melting point: -35°C ((2 atm. pressure))
- Boiling point: -47°C
- Density: 8.467 kg m-3 (gas)
The following are some synonyms of selenium hexafluoride:
- selenium hexafluoride
- selenium(VI) fluoride
- selenium fluoride
The oxidation number of selenium in selenium hexafluoride is 6.
Se +3F2 → SeF6
Selenium(VI) fluoride may be made in the laboratory by passing a stream of fluorine gas over solid selenium contained in a copper tube. Lower fluorides can be frozen out in a moderate cold trap while the hexafluoride is trapped in a liquid nitrogen cold trap. Selenium(VI) fluoride's melting point is -46.6°C.
Solid state structure
- Geometry of selenium:
- Prototypical structure:
The table shows element percentages for SeF6 (selenium hexafluoride).
Isotope pattern for SeF6
The chart below shows the calculated isotope pattern for the formula SeF6 with the most intense ion set to 100%.
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.