Terbium oxyfluorideTerbium oxyfluoride or terbium oxide fluoride is an inorganic compound of terbium, oxygen, and fluorine with the chemical formula.SynthesisThe compound can be formed as a result of the hydrolysis of terbium(IV) fluoride in water.Physical propertiesThe compound forms a white crystalline solid.UsesTerbium oxyfluoride nanoparticles have been synthesized and studied for their magneto-optical properties.