Erbium oxyfluoride

Erbium oxyfluoride or erbium oxide fluoride is an inorganic compound of erbium, oxygen, and fluorine with the chemical formula ErOF.^[1][2]

Erbium oxyfluoride

Names
IUPAC name fluoro(oxo)erbium
Other names Erbium oxide fluoride
Identifiers
CAS Number	13825-13-3 Y
3D model (JSmol)	Interactive image
ChemSpider	28294928
EC Number	678-684-0
PubChem CID	134068136
InChI InChI=1S/Er.FH.O/h;1H;/q+3;;-2/p-1 Key: WHNBDFNXKDUDPO-UHFFFAOYSA-M
SMILES [O-2].[F-].[Er+3]
Properties
Chemical formula	ErOF
Molar mass	202.256 g/mol
Appearance	Light red crystalline powder
Structure
Crystal structure	orthorhombic, rhombohedral
Hazards
GHS labelling:
Signal word	Danger
Hazard statements	H302, H312, H315, H319, H331, H335
Related compounds
Related compounds	Lanthanum oxyfluoride Neodymium oxyfluoride Samarium oxyfluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Physical properties

The compound forms crystals of orthorhombic and rhombohedral structures. The irreversible phase transition from O-ErOF to R-ErOF was observed under heating around 600 °C.^[3]