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Americium hexafluoride

Names
Other names Americium(VI) fluoride
Identifiers
CAS Number	90116-77-1
3D model (JSmol)	Interactive image
InChI InChI=1S/Am.6FH/h;6*1H/q+6;;;;;;/p-6Key: MOPXCOMYGFTBPM-UHFFFAOYSA-H
SMILES F(F)(F)(F)(F)F
Properties
Chemical formula	AmF6
Molar mass	357 g·mol
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 , 100 kPa). Infobox references

Americium hexafluoride is an inorganic chemical compound of americium metal and fluorine with the chemical formula AmF
₆. It is still a hypothetical compound. Synthesis by fluorination of americium tetrafluoride was unsuccessfully attempted in 1990. A thermochromatographic identification in 1986 remains inconclusive. Calculations suggest that it may be distorted from octahedral symmetry.

Synthesis

It is proposed that AmF
₆ can be prepared by in both the condensed and gaseous states by the reaction of KrF
₂ with AmF
₃ in anhydrous HF at 313–333 K.

2 AmF₃ + 3 KrF₂ → 2 AmF₆ + 3 Kr

References

1. Meyer, G.; Morss, L. R. (6 December 2012). Synthesis of Lanthanide and Actinide Compounds. Springer Science & Business Media. p. 80. ISBN 978-94-011-3758-4. Retrieved 29 March 2023.
2. O'Donnell, T. A. (8 June 2017). The Chemistry of Fluorine: Comprehensive Inorganic Chemistry. Elsevier. p. 1093. ISBN 978-1-4831-4642-3. 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. ^ 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). Chemical Thermodynamics of Americium. Newnes. p. 114. ISBN 978-0-444-59935-3. Retrieved 29 March 2023.
6. Прусаков, Владимир Николаевич (2013). Избранные научные труды (in Russian). Rosatom. p. 59. Retrieved 29 March 2023.

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