Terbium phosphide is an inorganic compound of terbium and phosphorus with the chemical formula TbP.[1][2]
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| Names | |
|---|---|
| Other names Terbium monophosphide, phosphanylidyneterbium | |
| Identifiers | |
3D model (JSmol) | |
| EC Number |
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PubChem CID | |
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| Properties | |
| PTb | |
| Molar mass | 189.899 |
| Appearance | Black crystals |
| Density | 6.82 g/cm3 |
| Structure | |
| Cubic | |
| Related compounds | |
Other anions | Terbium nitride Terbium arsenide Terbium antimonide Terbium bismuthide |
Other cations | Gadolinium phosphide Dysprosium phosphide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Synthesis
TbP can be obtained by the reaction of terbium and red phosphorus at 800–1000 °C:
- 4 Tb + P4 → 4 TbP
The compound can also be obtained by the reaction of sodium phosphide and anhydrous terbium chloride at 700~800 °C.[3]
Physical properties
TbP undergoes a phase transition at 40 GPa from a NaCl-structure to a CsCl-structure.[4] The compound can be sintered with zinc sulfide to make a green phosphor layer.[5]
TbP forms crystals of a cubic system, space group Fm3m.[6]
Uses
The compound is a semiconductor used in high power, high frequency applications and in laser diodes and other photo diodes.[1]
References
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