Terbium phosphide is an inorganic compound of terbium and phosphorus with the chemical formula TbP.[1][2]
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Other names
Terbium monophosphide, phosphanylidyneterbium
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Identifiers | |
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3D model (JSmol)
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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
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Terbium nitride Terbium arsenide Terbium antimonide Terbium bismuthide |
Other cations
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Gadolinium phosphide Dysprosium phosphide |
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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TbP can be obtained by the reaction of terbium and red phosphorus at 800–1000 °C:
The compound can also be obtained by the reaction of sodium phosphide and anhydrous terbium chloride at 700~800 °C.[3]
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]
The compound is a semiconductor used in high power, high frequency applications and in laser diodes and other photo diodes.[1]