Lithium phosphide

Lithium phosphide is an inorganic compound of lithium and phosphorus with the chemical formula Li
3P.[1][2]

Lithium phosphide
Names
Other names
Trilithium phosphide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.824
EC Number
  • 235-020-0
  • InChI=1S/3Li.H2P/h;;;1H2/q3*+1;-1
    Key: IEAMEDSGNMSUND-UHFFFAOYSA-N
  • [Li+].[Li+].[Li+].[PH2-]
Properties
Li3P
Molar mass 51.79 g·mol−1
Appearance Red-brown crystals
Density 1.43
Structure
cubic
Related compounds
Other cations
 Scandium phosphide
Lanthanum phosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis

Heating white phosphorus and lithium in an argon atmosphere:[3]

Reaction of monolithium phosphide and lithium:

Physical properties

Lithium phosphide forms red-brown crystals of hexagonal systems, space group P63/mmc,[4] cell parameters a = 0.4264 nm, c = 0.7579 nm, Z = 2.[5][6]

Chemical properties

The compound can react with water to release phosphine:[7]

Uses

The compound is proposed to be used as a potential electrolyte for solid-state devices.[8]

References
  1. "Lithium Phosphide". American Elements. Retrieved 10 December 2021.
  2. Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 9. Retrieved 10 December 2021.
  3. Nazri, Gholamabbas (1 April 1989). "Preparation, structure and ionic conductivity of lithium phosphide". Solid State Ionics. 34 (1–2): 97–102. doi:10.1016/0167-2738(89)90438-4.
  4. "mp-736: Li3P (hexagonal, P6_3/mmc, 194)". materialsproject.org. Retrieved 10 December 2021.
  5. Seel, Max; Pandey, Ravi (1990). "Band Structure and Electronic Properties of Lithium Phosphide Li3P". MRS Proceedings. 210. doi:10.1557/PROC-210-155. Retrieved 10 December 2021.
  6. Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 765. Retrieved 10 December 2021.
  7. Dong, Yongkwan; DiSalvo, Francis J. (15 April 2007). "Reinvestigation of trilithium phosphide, Li 3 P". Acta Crystallographica Section E. 63 (4): i97–i98. doi:10.1107/S1600536807008422.
  8. Wan, Chaoying; Huang, Xingyi; Bowen, Chris (23 June 2021). Two-dimensional Inorganic Nanomaterials for Conductive Polymer Nanocomposites. Royal Society of Chemistry. ISBN 978-1-83916-260-2. Retrieved 10 December 2021.
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