Chemistry:Ytterbium sulfide

From HandWiki
Ytterbium sulfide
Names
Other names
Ytterbium monosulfide, ytterbium(II) sulfide
Identifiers
3D model (JSmol)
ChemSpider
Properties
SYb
Molar mass 205.11 g·mol−1
Appearance black crystals
Density 6.68 g/cm3
Melting point 2,038 °C (3,700 °F; 2,311 K)
Structure
cubic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Ytterbium sulfide is a binary inorganic compound of ytterbium and sulfur with the chemical formula YbS.[1][2]

Synthesis

Synthesis of ytterbium sulfide can be via a reaction of pure substances in an inert atmosphere:[3]

Yb + S → YbS

An alternative synthesis is by comproportionation of ytterbium(III) sulfide and ytterbium metal in vacuum at 1000–1100 °C:

Yb
2
S
3
+ Yb → 3YbS

Physical properties

Ytterbium sulfide forms black crystals of cubic symmetry, space group Fm3m, cell parameter a = 0.5658 nm, Z = 4.[4]

Ytterbium sulfide demonstrates semiconductor behavior.[5]

References