Europium(III) phosphide

Europium phosphide is an inorganic compound of europium and phosphorus with the chemical formula EuP.[2][3][4] Other phosphides are also known.[5]

Europium(III) phosphide
Names
Other names
Phosphanylidyneeuropium, Europium phosphide[1]
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.044.780
EC Number
  • 249-274-5
  • InChI=1S/Eu.P
    Key: UXXSRDYSXZIJEN-UHFFFAOYSA-N
  • P#[Eu]
Properties
EuP
Molar mass 182.94
Appearance Dark crystals
Density g/cm3
Melting point 2,200 °C (3,990 °F; 2,470 K)
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

Synthesis

Heating powdered europium and red phosphorus in an inert atmosphere or vacuum:

Eu + P → EuP

Passing phosphine through a solution of europium in liquid ammonia:[6]

Eu + 2PH3 → Eu(PH2)2 + H2

with the subsequent decomposition of the phosphinide when heated:

2Eu(PH2)2 → 2EuP + 2PH3 + H2

Physical properties

Europium(III) phosphide forms dark crystals of a cubic system, space group Fm3m, stable in air, and does not dissolve in water.

Chemical properties

Europium(III) phosphide actively reacts with nitric acid.

Uses

The compound is a semiconductor used in high power, high frequency applications and in laser diodes.[2]

References
  1. "Europium phosphide". European Chemical Agency. Retrieved 15 December 2021.
  2. "Europium Phosphide". American Elements. Retrieved 15 December 2021.
  3. Pankratz, L. B. (1995). Bulletin 696. U.S. Government Printing Office. p. 279.
  4. Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Cumulative Supplement to the Initial Inventory: User Guide and Indices. United States Environmental Protection Agency. 1980. p. 172. Retrieved 15 December 2021.
  5. Mironov, K.E.; Brygalina, G.P.; Vikorskii, V. N. (1974). "Magnetism of Europium phosphides". Proceedings of the Rare Earth Research Conference. Plenum Press. p. 105. Retrieved 15 December 2021.
  6. Pytlewski, L. L.; Howell, J. K. (1 January 1967). "Preparation of Europium and ytterbium phosphides in liquid ammonia". Chemical Communications (London) (24): 1280. doi:10.1039/C19670001280. Retrieved 15 December 2021.
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