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Curium(IV) fluoride

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Curium(IV) fluoride
Names

IUPAC name Curium tetrafluoride
Other names Curium(IV) fluoride
Identifiers
CAS Number	24311-95-3
3D model (JSmol)	Interactive image
InChI InChI=1S/Cm.4FH/h;4*1H/q+4;;;;/p-4 Key: ZLUFUNLZMYTJKM-UHFFFAOYSA-J
SMILES [Cm+4].[F-].[F-].[F-].[F-]
Properties
Chemical formula	CmF₄
Molar mass	323 g·mol⁻¹
Appearance	brownish-tan solid
Related compounds
Related compounds	Americium tetrafluoride
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Curium(IV) fluoride is aninorganic chemical compound, a salt ofcurium andfluorine with the chemical formulaCmF₄.^[1]^[2]^[3]

Synthesis

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It is reported that the compound can be prepared by fluorination ofCmF₃ with elemental fluorine at 400 °C.^[4]

2CmF₃ + F₂ → 2CmF₄

Physical properties

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The compound forms brownish-tan solid composed of Cm⁴⁺ and F⁻ ions. It has a monoclinic crystal structure of the space groupC_2/c (No. 15), and lattice parameters a = 1250 pm, b = 1049 pm, and c = 818 pm.^[5]^[6]^[7] It has the same crystal structure as that ofUF₄.

References

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^Macintyre, Jane E. (23 July 1992).Dictionary of Inorganic Compounds.CRC Press. p. 3046.ISBN 978-0-412-30120-9. Retrieved27 June 2023.
^Gutmann, Viktor (2 December 2012).Halogen Chemistry.Elsevier. p. 318.ISBN 978-0-323-14847-4. Retrieved27 June 2023.
^Kistemaker, P. G.; Nibbering, N. M. M. (2 December 2012).Advances in Mass Spectrometry, Volume 12.Elsevier. p. 741.ISBN 978-0-444-59945-2. Retrieved27 June 2023.
^Advances in Inorganic Chemistry and Radiochemistry.Academic Press. 1960. p. 210.ISBN 978-0-08-057851-4. Retrieved27 June 2023.{{cite book}}:ISBN / Date incompatibility (help)
^Haug, H. O.; Baybarz, R. D. (1 December 1975)."Lattice parameters of the actinide tetrafluorides UF4, BkF4, and CfF4".Inorganic and Nuclear Chemistry Letters.11 (12):847–855.doi:10.1016/0020-1650(75)80112-7.ISSN 0020-1650. Retrieved3 July 2023.
^Pennenvan, R. A.; Ryan, R. R.; Rosenzweig, A. (1973)."Structural systematics in actinide fluoride complexes".Rare Earths. Structure and Bonding.13. Springer:1–52.doi:10.1007/3-540-06125-8_1.ISBN 978-3-540-06125-0. Retrieved3 July 2023.
^Asprey, L. B; Haire, R. G (1 November 1973)."On the actinide tetrafluoride lattice parameters".Inorganic and Nuclear Chemistry Letters.9 (11):1121–1128.doi:10.1016/0020-1650(73)80017-0.ISSN 0020-1650. Retrieved3 July 2023.

v t e Curium compounds
Curium(III)	Cm(OH)₃ Cm₂O₃ CmF₃ CmCl₃ CmBr₃ CmI₃ Cm(NO₃)₃ CmN Cm₂(C₂O₄)₃
Curium(IV)	CmO₂ CmF₄
Curium(VI)	CmF₆

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