Chemistry:Rhenium pentafluoride

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Rhenium pentafluoride
Names
Other names
Rhenium(V) fluoride
Identifiers
3D model (JSmol)
Properties
F5Re
Molar mass 281.199 g·mol−1
Appearance yellow-green crystals
Density g/cm3
Melting point 48 °C (118 °F; 321 K)
Boiling point 221.3 °C (430.3 °F; 494.4 K)
reacts with water
Structure
orthorhombic
Related compounds
Related compounds
Osmium pentafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Rhenium pentafluoride is a binary inorganic compound of rhenium and fluorine with the chemical formula ReF
5
.[1] This is a salt of rhenium and hydrofluoric acid.[2]

Synthesis

Rhenium pentafluoride can be synthesised by the reduction of rhenium hexafluoride with hydrogen, rhenium, or tungsten:

2ReF
6
+ H
2
→ 2ReF
5
+ 2HF
5ReF
6
+ Re → 6ReF
5
6ReF
6
+ W → 6ReF
5
+ WF
6

Physical properties

Rhenium pentafluoride forms yellow-green crystals[3] of orthorhombic crystal system, cell parameters a = 0.57 nm, b = 1.723 nm, c = 0.767 nm.

Rhenium pentafluoride reacts with water.

Rhenium pentafluoride is volatile. The compound consists of dimers of composition Re
2
F
10
.

References

  1. Gutmann, Viktor (2 December 2012) (in en). Halogen Chemistry. Elsevier. p. 192. ISBN 978-0-323-14847-4. https://books.google.com/books?id=q0j8Imd8yQsC&dq=Rhenium+pentafluoride&pg=PA192. Retrieved 6 April 2023. 
  2. Hawkins, Donald T. (6 December 2012) (in en). Binary Fluorides: Free Molecular Structures and Force Fields A Bibliography (1957–1975). Springer Science & Business Media. p. 50. ISBN 978-1-4684-6147-3. https://books.google.com/books?id=kOHgBwAAQBAJ&dq=Rhenium+pentafluoride&pg=PA50. Retrieved 6 April 2023. 
  3. Colton, Ray (1965) (in en). The Chemistry of Rhenium and Technetium. Interscience Publishers. p. 59. ISBN 978-0-470-16650-5. https://books.google.com/books?id=F97QAAAAMAAJ&q=Rhenium+pentafluoride. Retrieved 6 April 2023.