Samarium(III) phosphide

Samarium(III) phosphide
Names
	Other names Phosphanylidynesamarium, samarium monophosphide
Identifiers
CAS Number	12066-50-1;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.031.869
EC Number	235-069-8;
PubChem CID	82905;
CompTox Dashboard (EPA)	DTXSID601313202 ;
	InChI InChI=1S/P.Sm Key: QRVXKVFNBYFEOG-UHFFFAOYSA-N;
	SMILES P#[Sm];
Properties
Chemical formula	PSm
Molar mass	181.3
Appearance	Crystals
Density	6.3 g/cm3
Solubility in water	Insoluble
Structure
Crystal structure	Cubic
Related compounds
Other anions	Samarium nitride; Samarium arsenide; Samarium antimonide; Samarium bismuthide
Other cations	Neodymium phosphide; Europium phosphide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Samarium(III) phosphide is an inorganic compound of samarium and phosphorus with the chemical formula SmP.^[1]^[2]^[3]

Synthesis

Samarium(III) phosphide can be obtained by heating samarium and phosphorus:

4 Sm + P₄ → 4 SmP

Samarium(III) phosphide forms crystals of a cubic system, space group Fm3m, cell size a = 0.5760 nm, Z = 4, with a structure similar to sodium chloride NaCl.^[4]

The compound exists in the temperature range of 1315–2020 °C and has a homogeneity region described by the SmP_1÷0.982.^[5]

Samarium(III) phosphide readily dissolves in nitric acid.^[6]

Samarium(III) phosphide compound is a semiconductor used in high power, high frequency applications and in laser diodes.^[1]

^ ^a ^b "Samarium Phosphide". American Elements. Retrieved 21 December 2021.
^ Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 49. Retrieved 21 December 2021.
^ Freeman, A. J. (2 December 2012). The Actinides: Electronic Structure and Related Properties. Elsevier. p. 201. ISBN 978-0-323-15304-1. Retrieved 21 December 2021.
^ Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 888. Retrieved 21 December 2021.
^ Predel, B. (1998). "P-Sm (Phosphorus-Samarium)". Ni-Np – Pt-Zr. Landolt-Börnstein - Group IV Physical Chemistry. p. 1. doi:10.1007/10542753_2381. ISBN 3-540-61712-4. Retrieved 21 December 2021. {{cite book}}: |website= ignored (help)
^ Soviet Progress in Chemistry. Faraday Press. 1966. p. 91. Retrieved 21 December 2021.