Curium(IV) fluoride

Curium(IV) fluoride is an inorganic chemical compound, a salt of curium and fluorine with the chemical formula CmF₄.^[1][2][3]

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 their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

It is reported that the compound can be prepared by fluorination of CmF₃ with elemental fluorine at 400 °C.^[4]

2CmF₃ + F₂ → 2CmF₄

Physical properties

The compound forms brownish-tan solid composed of Cm⁴⁺ 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.^[5][6][7] It has the same crystal structure as that of UF₄.