Praseodymium(IV) fluoride
Praseodymium fluoride is a binary inorganic compound, a highly oxidised metal salt of praseodymium and fluoride with the chemical formula PrF4.
Synthesis
Praseodymium fluoride can be prepared by the effect of krypton difluoride on praseodymium(IV) oxide:Praseodymium fluoride can also be made by the dissolution of sodium hexafluoropraseodymate in liquid hydrogen fluoride:
Properties
Praseodymium fluoride forms light yellow crystals. The crystal structure is anticubic and isomorphic to that of uranium tetrafluoride UF4. It decomposes when heated:Due to the high normal potential of the tetravalent praseodymium cations, praseodymium fluoride decomposes in water, releasing oxygen, O2.