Yttrium phosphide

Yttrium phosphide is an inorganic compound of yttrium and phosphorus with the chemical formula YP.^[3][4][5] The compound may be also classified as yttrium(III) phosphide.

Yttrium phosphide

Names
IUPAC name Phosphanylidyneyttrium
Other names Yttrium phosphide, yttrium(III) phosphide.
Identifiers
CAS Number	12294-01-8
3D model (JSmol)	Interactive image
ChemSpider	74895
ECHA InfoCard	100.032.318
EC Number	235-563-3
PubChem CID	83012
CompTox Dashboard (EPA)	DTXSID701318962
InChI InChI=1S/P.Y Key: DWDQAMUKGDBIGM-UHFFFAOYSA-N
SMILES P#[Y]
Properties
Chemical formula	PY
Molar mass	119.879600
Appearance	Colourless solid
Density	4.35 g/cm3[1]
Melting point	200.78 °C (393.40 °F; 473.93 K)
Boiling point	511.30 °C (952.34 °F; 784.45 K)
Structure[2]
Crystal structure	Rock salt structure
Space group	Fm3m
Lattice constant	a = 0.5661 nm
Formula units (Z)	4
Coordination geometry	Octahedral at Y3+, Octahedral at P3-
Related compounds
Other anions	Yttrium nitride Yttrium(III) arsenide Yttrium(III) antimonide
Other cations	Scandium phosphide Lutetium phosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

Heating (500–1000 °C) of pure substances in a vacuum:^[6]

4 Y + P₄ → 4 YP

Properties

Yttrium phosphide forms cubic crystals.^[1]

Uses

Ytttium phosphide is a semiconductor used in laser diodes, and in high power and frequency applications.