Californium(III) fluoride

Californium(III) fluoride
Names
	Other names Californium trifluoride
Identifiers
CAS Number	42775-52-0;
3D model (JSmol)	Interactive image;
	InChI InChI=1S/Cf.3FH/h;3*1H/q+3;;;/p-3 Key: RFYJBQZVUMTFMQ-UHFFFAOYSA-K;
	SMILES [Cf+3].[F-].[F-].[F-];
Properties
Chemical formula	CfF3
Molar mass	308 g·mol−1
Appearance	yellow-green solid
Density	g/cm3
Structure
Crystal structure	orthorhombic
Related compounds
Related compounds	Berkelium trifluoride; Einsteinium trifluoride
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	radioactive
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Californium(III) fluoride is a binary inorganic compound of californium and fluorine with the formula CfF
₃^[1]

Physical properties

Californium(III) fluoride is a yellow-green solid^[2] and has two crystalline structures that are temperature dependent. At low temperatures the orthorhombic structure (YF
₃ type) is found with lattice constants a = 665.3(3) pm, b = 703.9(1) pm and c = 439.3(3) pm. At higher temperatures it forms a trigonal system (LaF
₃ type) with: a = 694.5(3) pm and c = 710.1(2) pm. Here, each californium atom is surrounded by nine fluorine atoms in a distorted triply-capped trigonal-prismatic structure.^[3]^[4]

References

^ Haupt, Axel (22 March 2021). Organic and Inorganic Fluorine Chemistry: Methods and Applications. Walter de Gruyter GmbH & Co KG. p. 618. ISBN 978-3-11-065933-7. Retrieved 6 April 2023.
^ "WebElements Periodic Table » Californium » californium trifluoride". webelements.com. Retrieved 6 April 2023.
^ Stevenson, J. N.; Peterson, J. R. (1 October 1973). "The trigonal and orthorhombic crystal structures of CfF3 and their temperature relationship". Journal of Inorganic and Nuclear Chemistry. 35 (10): 3481–3486. doi:10.1016/0022-1902(73)80356-2. ISSN 0022-1902. Retrieved 6 April 2023.
^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 2825. ISBN 978-0-412-30120-9. Retrieved 6 April 2023.

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[1] Haupt, Axel (22 March 2021). Organic and Inorganic Fluorine Chemistry: Methods and Applications. Walter de Gruyter GmbH & Co KG. p. 618. ISBN 978-3-11-065933-7. Retrieved 6 April 2023.

[2] "WebElements Periodic Table » Californium » californium trifluoride". webelements.com. Retrieved 6 April 2023.

[3] Stevenson, J. N.; Peterson, J. R. (1 October 1973). "The trigonal and orthorhombic crystal structures of CfF3 and their temperature relationship". Journal of Inorganic and Nuclear Chemistry. 35 (10): 3481–3486. doi:10.1016/0022-1902(73)80356-2. ISSN 0022-1902. Retrieved 6 April 2023.

[4] Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 2825. ISBN 978-0-412-30120-9. Retrieved 6 April 2023.

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