Praseodymium monophosphide is an

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

praseodymium Praseodymium is a chemical element; it has symbol Pr and atomic number 59. It is the third member of the lanthanide series and is considered one of the rare-earth metals. It is a soft, silvery, malleable and ductile metal, valued for its magnetic ...

and

phosphorus Phosphorus is a chemical element; it has Chemical symbol, symbol P and atomic number 15. All elemental forms of phosphorus are highly Reactivity (chemistry), reactive and are therefore never found in nature. They can nevertheless be prepared ar ...

with the chemical formula PrP. The compound forms crystals.

Synthesis

Praseoymium monophosphide can be prepared by heating praseodymium and phosphorus in the presence of iodine vapor: :

Physical properties

Praseodymium monophosphide forms crystals of a cubic system, space group ''Fmm'', with cell parameters a = 0.5872 nm, Z = 4, and structure like

sodium chloride Sodium chloride , commonly known as Salt#Edible salt, edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. It is transparent or translucent, brittle, hygroscopic, and occurs a ...

NaCl. It melts congruently at 3120 °C.

References

{{Phosphides Phosphides Praseodymium(III) compounds Rock salt crystal structure