Einsteinium fluoride
Names
Other names
Einsteinium(III) fluoride, einsteinium trifluoride
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/Es.3FH/h;3*1H/q+3;;;/p-3
    Key: NYNVZWGCTJTDET-UHFFFAOYSA-K
  • [Es+3].[F-].[F-].[F-]
Properties
EsF3
Molar mass 309 g·mol−1
Appearance crystals
insoluble
Related compounds
Related compounds
 Californium(III) fluoride
Berkelium(III) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Einsteinium fluoride is a binary inorganic chemical compound of einsteinium and fluorine with the chemical formula EsF3.[1]

Synthesis

Einsteinium fluoride can be precipitated from einsteinium(III) chloride solutions upon reaction with fluoride ions. An alternative preparation procedure is to expose einsteinium(III) oxide to chlorine trifluoride (ClF3) or F2 gas at a pressure of 1–2 atmospheres and a temperature between 300 and 400 °C. The EsF3 crystal structure is hexagonal, as in californium(III) fluoride (CfF3) where the Es3+ ions are 8-fold coordinated by fluorine ions in a bicapped trigonal prism arrangement.[2][3][4]

Physical properties

The compound forms crystals and is insoluble in water.[5]

Chemical properties

The compound is reduced by metallic lithium:[6][7]

EsF3 + 3Li → Es + 3 LiF

References

  1. ↑ Yaws, Carl L. (6 January 2015). The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics. Gulf Professional Publishing. p. 709. ISBN 978-0-12-801146-1. Retrieved 28 June 2023.
  2. ↑ Ensor, D. D.; Peterson, J. R.; Haire, R. G.; Young, J. P. (1981). "Absorption spectrophotometric study of 253EsF3 and its decay products in the bulk-phase solid state". Journal of Inorganic and Nuclear Chemistry. 43 (10): 2425–2427. doi:10.1016/0022-1902(81)80274-6.
  3. ↑ Greenwood, p. 1270
  4. ↑ Young, J. P.; Haire, R. G.; Fellows, R. L.; Peterson, J. R. (1978). "Spectrophotometric studies of transcurium element halides and oxyhalides in the solid state". Journal of Radioanalytical Chemistry. 43 (2): 479–488. doi:10.1007/BF02519508. S2CID 95361392.
  5. ↑ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3121. ISBN 978-0-412-30120-9. Retrieved 28 June 2023.
  6. ↑ Morss, L. R.; Edelstein, Norman M.; Fuger, Jean (31 December 2007). The Chemistry of the Actinide and Transactinide Elements (3rd ed., Volumes 1-5). Springer Science & Business Media. p. 1390. ISBN 978-1-4020-3598-2. Retrieved 28 June 2023.
  7. ↑ Haire, Richard G. (2006). "Einsteinium". In Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (PDF). Vol. 3 (3rd ed.). Dordrecht, the Netherlands: Springer. pp. 1577–1620. doi:10.1007/1-4020-3598-5_12. ISBN 978-1-4020-3555-5. Archived from the original (PDF) on 2010-07-17.
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