Chemistry:Praseodymium(III) nitride

Praseodymium(III) nitride
Names
	Other names azanylidynepraseodymium, praseodymium(III) nitride
Identifiers
CAS Number	25764-09-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	105114;
EC Number	247-244-6;
PubChem CID	117626;
	InChI InChI=1S/N.Pr Key: JCWZBEIBQMTAIH-UHFFFAOYSA-N;
	SMILES N#[Pr];
Properties
Chemical formula	NPr
Molar mass	154.915 g·mol−1
Appearance	black crystals
Density	7.46 g/cm3
Solubility in water	reacts with water
Hazards
GHS pictograms
GHS Signal word	Warning
GHS hazard statements	H315, H319, H335
GHS precautionary statements	P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Praseodymium(III) nitride is a binary inorganic compound of praseodymium and nitrogen.^[2] Its chemical formula is PrN.^[3] The compound forms black crystals, and reacts with water.

Preparation

Praseodymium(III) nitride can be prepared by the reaction of nitrogen and metallic praseodymium on heating:

2 Pr + N
2 → 2 PrN

It can also be prepared from the reaction of ammonia and praseodymium metal on heating:

2 Pr + 2 NH
3 → 2 PrN + 3 H
2

Properties

Praseodymium(III) nitride forms black crystals of a cubic system. The space group is Fm3m,^[4] with cell parameter a = 0.5165 nm, Z = 4, its structure similar to that of sodium chloride (NaCl).

The compound is readily hydrolyzed with water and reacts with acids.

Applications

The compound is used in high-end electric and semiconductor products, and as a raw material to produce phosphor. Also it is used as a magnetic material and sputtering target material.^[5]