Chemistry:Ytterbium phosphide

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Ytterbium phosphide
Names
Other names
Phosphanylidyneytterbium
Identifiers
3D model (JSmol)
EC Number
  • 234-865-2
Properties
PYb
Molar mass 204.01
Appearance Black crystals
Density 6.94 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
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Ytterbium phosphide is an inorganic compound of ytterbium and phosphorus with the chemical formula YbP.[1] This is one of the phosphides of ytterbium.[2][3]

Synthesis

Ytterbium and phosphine reacts in liquid ammonia to form Yb(PH2)2·5NH3, which can be decomposed to obtain ytterbium phosphide:[4]

Yb(PH2)2•5NH3 → Yb(PH2)2 + 5NH3
2Yb(PH2)2 → YbP + 2PH3 + H2

Physical properties

Ytterbium phosphide decomposes at or above 550 °C:

12 YbP → 4 Yb3P2 + P4

It is soluble in hydrochloric acid, nitric acid, and aqua regia.

The compound forms black crystals of a cubic system, space group Fm3m.[5]

Uses

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

References