Palladium(II) sulfide

Names
Other names
Palladium monosulfide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.979
EC Number
  • 235-190-6
  • InChI=1S/Pd.S
    Key: NRUVOKMCGYWODZ-UHFFFAOYSA-N
  • [S].[Pd]
Properties
PdS
Appearance brown solid[2] or black[3] or grey[4] metallic crystals
Related compounds
Other anions
 PdO
Other cations
 NiS, PtS
Related compounds
 PdS2
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Palladium(II) sulfide is a chemical compound of palladium and sulfur with the chemical formula PdS. Like other palladium and platinum chalcogenides, palladium(II) sulfide has complex structural, electrical and magnetic properties.[2][4]

Preparation

Palladium(II) sulfide is formed when hydrogen sulfide is passed through an aqueous solution containing palladium in the +2 oxidation state:[2]

Pd2+ + H2S → PdS + 2H+

Berzelius reacted palladium directly with sulfur to produce palladium(II) sulfide in 1813:[4]

Pd + S → PdS

Structure

The crystal structure of PdS contains approximately square planar palladium centres and tetrahedral sulfur centres.[1]

Reactivity

If palladium(II) sulfide is heated with an excess of sulfur, palladium disulfide is formed:[2]

PdS + S → PdS2

A variety of other compounds in the Pd-S system have been reported, including Pd4S, Pd2.8S, Pd2.2S and PdS2.[4] The mineral Braggite has the composition (Pt, Pd, Ni)S and is isomorphous with PdS.[3]

See also

References

  1. 1 2 Brese, N. E.; Squattrito, P. J.; Ibers, J. A. (1985). "Reinvestigation of the structure of PdS". Acta Crystallogr. C. 41 (12): 1829–1830. doi:10.1107/S0108270185009623.
  2. 1 2 3 4 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1152. ISBN 978-0-08-037941-8.
  3. 1 2 Gaskell, T. F. (1937). "The Structure of Braggite and Palladium Sulphide". Z. Kristallogr. 96 (1–6): 203–213. doi:10.1524/zkri.1937.96.1.203. S2CID 102295767.
  4. 1 2 3 4 Grønvold, Fredrik; Røst, Erling (1956). "On the Sulfides, Selenides, and Tellurides of Palladium". Acta Chemica Scandinavica. 10: 1620–1634. doi:10.3891/acta.chem.scand.10-1620.
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