Samarium(III) phosphide
Chemical compound
From Wikipedia, the free encyclopedia
Samarium(III) phosphide is an inorganic compound of samarium and phosphorus with the chemical formula SmP.[1][2][3]
| Names | |
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| Other names
Phosphanylidynesamarium, samarium monophosphide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.869 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| PSm | |
| Molar mass | 181.3 |
| Appearance | Crystals |
| Density | 6.3 g/cm3 |
| Insoluble | |
| 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).
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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.[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(III) phosphide readily dissolves in nitric acid.[6]
Uses
Samarium(III) phosphide compound is a semiconductor used in high power, high frequency applications and in laser diodes.[1]