Samarium phosphide

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

Samarium phosphide
Names
Other names
Phosphanylidynesamarium, samarium monophosphide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.031.869
EC Number
  • 235-069-8
  • InChI=1S/P.Sm
    Key: QRVXKVFNBYFEOG-UHFFFAOYSA-N
  • P#[Sm]
Properties
PSm
Molar mass 181.3
Appearance Crystals
Density 6.3 g/cm3
Insoluble
Structure
Cubic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis

Synthesis s by heating samarium and phosphorus:

4 Sm + P4 → 4 SmP

Physical properties

Samarium 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 SmP1÷0.982.[5]

Chemical properties

Samarium phosphide readily dissolves in nitric acid.[6]

Uses

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

References
  1. "Samarium Phosphide". American Elements. Retrieved 21 December 2021.
  2. Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 49. Retrieved 21 December 2021.
  3. 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.
  4. Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 888. Retrieved 21 December 2021.
  5. Predel, B. (1998). "P-Sm (Phosphorus-Samarium)". Ni-Np – Pt-Zr. p. 1. doi:10.1007/10542753_2381. ISBN 3-540-61712-4. Retrieved 21 December 2021. {{cite book}}: |website= ignored (help)
  6. Soviet Progress in Chemistry. Faraday Press. 1966. p. 91. Retrieved 21 December 2021.
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