Samarium(III) phosphide
{{redirects|Samarium phosphide|the pentaphosphide|Samarium pentaphosphide}}
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| ImageSize = 200px
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| IUPACName =
| OtherNames = Phosphanylidynesamarium, samarium monophosphide
| Section1 = {{Chembox Identifiers
| CASNo = 12066-50-1
| PubChem = 82905
| ChemSpiderID =
| EINECS = 235-069-8
| UNNumber =
| SMILES = P#[Sm]
| StdInChI= 1S/P.Sm
| StdInChIKey= QRVXKVFNBYFEOG-UHFFFAOYSA-N
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| Section2 = {{Chembox Properties
| Sm=1|P=1
| Appearance = Crystals
| Density = 6.3 g/cm3
| MolarMass = 181.3
| Solubility = Insoluble
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| Section4 = {{Chembox Structure
| CrystalStruct = Cubic
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| Section7 = {{Chembox Hazards
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| Section9 = {{Chembox Related
| OtherAnions = Samarium nitride
Samarium arsenide
Samarium antimonide
Samarium bismuthide
| OtherCations = Neodymium phosphide
Europium phosphide
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Samarium(III) phosphide is an inorganic compound of samarium and phosphorus with the chemical formula SmP.{{cite web |title=Samarium Phosphide |url=https://www.americanelements.com/samarium-phosphide-12066-50-1 |publisher=American Elements |access-date=21 December 2021 |language=en}}{{cite book |title=Toxic Substances Control Act (TSCA) Chemical Substance Inventory |date=1979 |publisher=U.S. Government Printing Office |page=49 |url=https://books.google.com/books?id=EwXoYmUt_B0C&dq=samarium+phosphide+SmP&pg=RA2-PA49 |access-date=21 December 2021 |language=en}}{{cite book |last1=Freeman |first1=A. J. |title=The Actinides: Electronic Structure and Related Properties |date=2 December 2012 |publisher=Elsevier |isbn=978-0-323-15304-1 |page=201 |url=https://books.google.com/books?id=Z1MdFPbbsBYC&dq=samarium+phosphide+SmP&pg=PA201 |access-date=21 December 2021 |language=en}}
Synthesis
Samarium(III) phosphide can be obtained by heating samarium and phosphorus:
:: 4 Sm + P4 → 4 SmP
Physical properties
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.{{cite book |last1=Donnay |first1=Joseph Désiré Hubert |title=Crystal Data; Determinative Tables |date=1963 |publisher=American Crystallographic Association |page=888 |url=https://books.google.com/books?id=x5ghAQAAMAAJ&dq=samarium+phosphide+SmP&pg=PA888 |access-date=21 December 2021 |language=en}}
The compound exists in the temperature range of 1315–2020 °C and has a homogeneity region described by the SmP1÷0.982.{{cite book |last1=Predel |first1=B. |title=Ni-Np – Pt-Zr |chapter=P-Sm (Phosphorus-Samarium) |chapter-url=https://materials.springer.com/lb/docs/sm_lbs_978-3-540-70692-2_2381 |website=Ni-Np – Pt-Zr |series=Landolt-Börnstein - Group IV Physical Chemistry |access-date=21 December 2021 |pages=1 |language=en |doi=10.1007/10542753_2381 |date=1998|isbn=3-540-61712-4 }}
Chemical properties
Uses
Samarium(III) phosphide compound is a semiconductor used in high power, high frequency applications and in laser diodes.
References
{{Reflist}}
{{Samarium compounds}}
{{Phosphorus compounds}}
{{Phosphides}}