Chemistry:Technetium(V) fluoride

From HandWiki
Technetium(V) fluoride
Names
Other names
Technetium(V) fluoride
Identifiers
3D model (JSmol)
Properties
F5Tc
Molar mass 193 g·mol−1
Appearance yellow crystals
Melting point 50 °C (122 °F; 323 K)
reacts with water
Structure
orthorhombic
Related compounds
Related compounds
Rhenium pentafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Technetium pentaluoride is a binary inorganic chemical compound of technetium metal and fluorine with the chemical formula TcF5.[1][2][3][4]

Synthesis

The compound can be synthesised by heating of technetium powder in a jet of fluorine diluted with nitrogen:

2Tc + 5F
2
  → 2TcF
5

Another way to prepare it is the effect of iodine on technetium hexafluoride solution in iodine pentafluoride:[5]

2TcF
6
+ I
2
  → 2TcF
5
+ 2IF

Physical properties

Technetium pentafluoride forms yellow crystals[6] of orthorhombic crystal system.[7] It reacts with water, and is volatile.

Chemical properties

The compound is hydrolyzed by water, disproportionating to more stable technetium compounds:

3TcF
5
+ 8H
2
O → HTcO
4
+ 2TcO
2
+ 15HF

References

  1. "WebElements Periodic Table » Technetium » technetium pentafluoride". webelements.com. https://www.webelements.com/compounds/technetium/technetium_pentafluoride.html. 
  2. Gutmann, Viktor (2 December 2012) (in en). Halogen Chemistry. Elsevier. p. 197. ISBN 978-0-323-14847-4. https://books.google.com/books?id=q0j8Imd8yQsC&dq=technetium+pentafluoride&pg=PA197. Retrieved 19 April 2023. 
  3. Schwochau, Klaus (21 November 2008) (in en). Technetium: Chemistry and Radiopharmaceutical Applications. John Wiley & Sons. p. 113. ISBN 978-3-527-61337-3. https://books.google.com/books?id=g3QiV8Wr5ToC&dq=technetium+pentafluoride&pg=PA113. Retrieved 19 April 2023. 
  4. "Some physical properties of technetium pentafluoride" (in en). Journal of Inorganic and Nuclear Chemistry 28: 231–232. 1 January 1976. doi:10.1016/0022-1902(76)80635-5. ISSN 0022-1902. https://www.sciencedirect.com/science/article/abs/pii/0022190276806355. Retrieved 19 April 2023. 
  5. Schwochau, Klaus (21 November 2008) (in en). Technetium: Chemistry and Radiopharmaceutical Applications. John Wiley & Sons. p. 114. ISBN 978-3-527-61337-3. https://books.google.com/books?id=g3QiV8Wr5ToC&dq=technetium+pentafluoride+prepared&pg=PA114. Retrieved 19 April 2023. 
  6. Lide, David R. (29 June 2004) (in en). CRC Handbook of Chemistry and Physics, 85th Edition. CRC Press. p. 4-88. ISBN 978-0-8493-0485-9. https://books.google.com/books?id=WDll8hA006AC&dq=technetium+pentafluoride+CRC&pg=SA4-PA88. Retrieved 19 April 2023. 
  7. Kemmitt, R. D. W.; Peacock, R. D. (26 January 2016) (in en). The Chemistry of Manganese, Technetium and Rhenium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 889. ISBN 978-1-4831-8762-4. https://books.google.com/books?id=c0n-BAAAQBAJ&dq=technetium+pentafluoride&pg=PA889. Retrieved 19 April 2023.