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Palladium disulfide

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Palladium disulfide
Names
Other names Palladium(II) disulfide
Identifiers
CAS Number
3D model (JSmol)
InChI
  • InChI=1S/Pd.S2/c;1-2/q+2;-2Key: ZMOVFMLVWHDWBO-UHFFFAOYSA-N
SMILES
  • .
Properties
Chemical formula PdS2
Appearance grey solid or black crystalline powder metallic crystals
Related compounds
Other anions PdSe2, PdTe2
Other cations PtS2, RuS2, IrS2
Related compounds PdS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Palladium disulfide is a chemical compound of palladium and sulfur with the chemical formula PdS2.

Preparation

Palladium disulfide is formed when palladium(II) sulfide is heated with an excess of sulfur.

PdS + S → PdS2

However, some starting material may remain even after heating for many months. An alternative route involves heating palladium(II) chloride and excess sulfur to 450 °C in a sealed tube, then washing the crude product with carbon disulfide. This procedure yields PdS2 free of PdS.

Structure

PdS2 contains sulfur-sulfur bonds so it can be thought of as a disulfide that formally consists of S2 and Pd ions, instead of S and Pd ions. It adopts a layered crystal structure that contains square planar palladium centres and trigonal pyramidal sulfur centres.

Related compounds

A variety of other compounds in the Pd-S system have been reported, including Pd4S, Pd2.8S, Pd2.2S and PdS.

See also

References

  1. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1152. ISBN 978-0-08-037941-8.
  2. ^ 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.
  3. Selb, Elisabeth; Götsch, Thomas; Janka, Oliver; Penner, Simon; Heymann, Gunter (2017). "Crystal Structures of the High-Pressure Palladium Dichalcogenides Pd0.94(1)S2 and Pd0.88(1)Se2 Comprising Exceptional Pd Oxidation States". Z. Anorg. Allg. Chem. 643 (21): 1415–1423. doi:10.1002/zaac.201700140.
Palladium compounds
Pd(0)
Organopalladium(0) compounds
  • Pd2((C6H5C2H2)2CO)3
    • Pd(II)
    Organopalladium(II) compounds
  • ((CH2)2CHPdCl)2
  • (C5H5)Pd(C3H5)
    • Pd(II,IV)
    Pd(IV)
    Pd(VI)
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