Einsteinium trifluoride

From Wikipedia, the free encyclopedia

Einsteinium fluoride
Names
Other names Einsteinium(III) fluoride, einsteinium trifluoride
Identifiers
CAS Number	99644-27-6
3D model (JSmol)	Interactive image
ChemSpider	64887117
InChI InChI=1S/Es.3FH/h;3*1H/q+3;;;/p-3 Key: NYNVZWGCTJTDET-UHFFFAOYSA-K
SMILES [Es+3].[F-].[F-].[F-]
Properties
Chemical formula	EsF₃
Molar mass	309 g·mol⁻¹
Appearance	crystals
Solubility in water	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

^ 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.
^ 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.
^ Greenwood, p. 1270
^ 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.
^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3121. ISBN 978-0-412-30120-9. Retrieved 28 June 2023.
^ 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.
^ 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.

v t e Einsteinium compounds
Es(II)	EsCl₂ EsBr₂ EsI₂
Es(III)	EsCl₃ EsBr₃ EsI₃ EsF₃ Es₂O₃ Es(NO₃)₃ EsOCl EsOBr EsOI
Es(IV)	EsF₄
Es(VI)	EsF₆ (predicted)

Categories:

Hidden categories: