Californium(III) fluoride

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

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

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]