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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-4Key: ZLUFUNLZMYTJKM-UHFFFAOYSA-J
SMILES ....
Properties
Chemical formula	CmF4
Molar mass	323 g·mol
Appearance	brownish-tan solid
Related compounds
Related compounds	Americium tetrafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Curium(IV) fluoride is an inorganic chemical compound, a salt of curium and fluorine with the chemical formula CmF₄.

Synthesis

It is reported that the compound can be prepared by fluorination of CmF₃ with elemental fluorine at 400 °C.

2CmF₃ + F₂ → 2CmF₄

Physical properties

The compound forms brownish-tan solid composed of Cm and F ions. It has a monoclinic crystal structure of the space group C_2/c (No. 15), and lattice parameters a = 1250 pm, b = 1049 pm, and c = 818 pm. It has the same crystal structure as that of UF₄.

References

1. Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3046. ISBN 978-0-412-30120-9. Retrieved 27 June 2023.
2. Gutmann, Viktor (2 December 2012). Halogen Chemistry. Elsevier. p. 318. ISBN 978-0-323-14847-4. Retrieved 27 June 2023.
3. 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. Retrieved 27 June 2023.
4. Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1960. p. 210. ISBN 978-0-08-057851-4. Retrieved 27 June 2023.
5. 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. Retrieved 3 July 2023.
6. 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. Retrieved 3 July 2023.
7. 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. Retrieved 3 July 2023.

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