Lutetium phosphide

Names
Other names Phosphanylidynelutetium
Identifiers
CAS Number	12032-05-2
3D model (JSmol)	Interactive image
ECHA InfoCard	100.031.588
EC Number	234-761-7[1]
PubChem CID	82822
InChI InChI=1S/Lu.P Key: PQFNNANPDJBCCR-UHFFFAOYSA-N
SMILES [Lu+3].[P-3]
Properties
Chemical formula	LuP
Molar mass	205.94[2]
Appearance	Dark crystals
Density	8,1
Solubility in water	Insoluble
Structure
Crystal structure	cubic
Related compounds
Other anions	Lutetium nitride Lutetium arsenide Lutetium antimonide Lutetium bismuthide
Other cations	Ytterbium phosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Lutetium phosphide is an inorganic compound of lutetium and phosphorus with the chemical formula LuP.^[3][4] The compound forms dark crystals, does not dissolve in water.

Synthesis

Heating powdered lutetium and red phosphorus in an inert atmosphere or vacuum:

${\displaystyle {\ce {4Lu + P4 -> 4LuP))}$

It can also be formed in the reaction of lutetium and phosphine.

Physical properties

Lutetium phosphide forms dark cubic crystals, space group Fm3m, cell parameters a = 0.5533 nm, Z = 4.^[5]

Stable in air, does not dissolve in water and reacts actively with nitric acid.

Uses

The compound is a semiconductor used in high power, high-frequency applications, and in laser diodes.^[6]

Also used in gamma radiation detectors due to its ability to absorb radiation.