Lanthanum monosulfide is a binary inorganic chemical compound of lanthanum metal and sulfur with the chemical formula LaS.[1][2]

Synthesis

Lanthanum monosulfide can be prepared from the effect of sulfur vapor on metallic lanthanum:

La + S → LaS

It can also be prepared from the reduction of La2S3 with metallic La.[3]

Physical properties

Lanthanum monosulfide forms golden crystals[4] of the cubic system, space group Fm3m, cell parameters a = 0.586 nm, Z = 4, structurally isomorphous with NaCl.[5]

References

  1. ^ Cater, E. D.; Lee, T. E.; Johnson, E. W.; Rauh, E. G.; Eick, H. A. (1965). "Vaporization, thermodynamics, and dissociation energy of lanthanum monosulfide". NIST. p. 2684. Retrieved 26 July 2024.
  2. ^ "Lanthanum Monosulfide". American Elements. Retrieved 26 July 2024.
  3. ^ Soviet Research on Complex and Coordination Compounds: Inorganic complexes. 1960. p. 579. Retrieved 26 July 2024.
  4. ^ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 220. ISBN 978-1-4398-1462-8. Retrieved 26 July 2024.
  5. ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3548. ISBN 978-0-412-30120-9. Retrieved 26 July 2024.
Allikas: https://en.wikipedia.org/wiki/Lanthanum_monosulfide
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