Praseodymium(III) nitride

Names
Other names azanylidynepraseodymium, praseodymium(III) nitride
Identifiers
CAS Number	25764-09-4 Y
3D model (JSmol)	Interactive image
ChemSpider	105114
ECHA InfoCard	100.042.935
EC Number	247-244-6
PubChem CID	117626
CompTox Dashboard (EPA)	DTXSID0067139
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 labelling:
Pictograms	[1]
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, 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.

Synthesis

• Reaction of nitrogen and metallic praseodymium on heating:

${\displaystyle {\mathsf {2Pr+N_{2}\ {\xrightarrow {800-1000^{o}C}}\ 2PrN}}}$

• Reaction of ammonia and praseodymium metal on heating:

${\displaystyle {\mathsf {2Pr+2NH_{3}\ {\xrightarrow {200-600^{o}C}}\ 2PrN+3H_{2}}}}$

Properties

Praseodymium 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]

References