Chemistry:Americium hexafluoride

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Americium hexafluoride
Americium hexafluoride.svg
Names
Other names
Americium(VI) fluoride
Identifiers
3D model (JSmol)
Properties
AmF6
Molar mass 357 g·mol−1
Related compounds
Related compounds
Uranium hexafluoride
Curium hexafluoride
Einsteinium hexafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Tracking categories (test):

Americium hexafluoride is an inorganic chemical compound of americium metal and fluorine with the chemical formula AmF6. It is still a hypothetical compound.[1][2] Synthesis by fluorination of americium tetrafluoride was unsuccessfully attempted in 1990.[3] A thermochromatographic identification in 1986 remains inconclusive.[4] Calculations suggest that it may be distorted from octahedral symmetry.[4]

Synthesis

It is proposed that AmF6 can be prepared by in both the condensed and gaseous states by the reaction of KrF2 with AmF3 in anhydrous HF at 313–333 K.[5]

AmF
3
+ KrF
2
→ AmF
6
+ Kr
[6]

References

  1. Meyer, G.; Morss, L. R. (6 December 2012) (in en). Synthesis of Lanthanide and Actinide Compounds. Springer Science & Business Media. p. 80. ISBN 978-94-011-3758-4. https://books.google.com/books?id=z0jvCAAAQBAJ&dq=Americium+hexafluoride&pg=PA80. Retrieved 29 March 2023. 
  2. O'Donnell, T. A. (8 June 2017) (in en). The Chemistry of Fluorine: Comprehensive Inorganic Chemistry. Elsevier. p. 1093. ISBN 978-1-4831-4642-3. https://books.google.com/books?id=ED79BAAAQBAJ&dq=Americium+hexafluoride&pg=PA1093. Retrieved 29 March 2023. 
  3. Malm, J. G.; Weinstock, B.; Weaver, E. E. (1958). "The Preparation and Properties of NpF6; a Comparison with PuF6". The Journal of Physical Chemistry 62 (12): 1506–1508. doi:10.1021/j150570a009. 
  4. 4.0 4.1 Seppelt, Konrad (2015). "Molecular Hexafluorides". Chemical Reviews 115 (2): 1296–1306. doi:10.1021/cr5001783. PMID 25418862. 
  5. Silva, R. J.; Bidoglio, G.; Robouch, P. B.; Puigdomenech, I.; Wanner, H.; Rand, M. H. (2 December 2012) (in en). Chemical Thermodynamics of Americium. Newnes. p. 114. ISBN 978-0-444-59935-3. https://books.google.com/books?id=yK3sMN_6llAC&dq=Americium+hexafluoride&pg=PA114. Retrieved 29 March 2023. 
  6. Прусаков, Владимир Николаевич (2013) (in ru). Избранные научные труды. Rosatom. p. 59. http://elib.biblioatom.ru/text/prusakov_2013/go,58/. Retrieved 29 March 2023.