Chemistry:Samarium(III) arsenide

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Samarium(III) arsenide
Names
Other names
samarium(III) arsenide, arsanylidynesamarium
Identifiers
3D model (JSmol)
EC Number
  • 235-506-2
Properties
SmAs
Molar mass 225.28
Appearance Crystals
Density 7.2 g/cm3
Melting point 2,257 °C (4,095 °F; 2,530 K)
Related compounds
Related compounds
Neptunium arsenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Samarium(III) arsenide is a binary inorganic compound of samarium and arsenic with the chemical formula SmAs.[1][2]

Synthesis

Samarium arsenide can be synthesised by heating of pure substances in vacuum:

Sm + As → SmAs

Physical properties

Samarium arsenide forms crystals of a cubic system,[3] space group Fm3m, cell parameters a = 0.5921 nm, Z = 4, of NaCl-structure.[4][5]

The compound melts congruently at 2257 °C.

Uses

SmAs is used as a semiconductor and in photo optic applications.[6]

References