Lead(IV) sulfide

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Lead(IV) sulfide
Names
IUPAC name
lead(IV) sulfide
Other names
lead disulfide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.032.025 Edit this at Wikidata
  • InChI=1S/Pb.2S/q;2*-2
    Key: CFCOCNLKEULEBS-UHFFFAOYSA-N
  • [S-2].[S-2].[Pb]
Properties
PbS2
Molar mass 271.332 g/mol
Structure[1]
Rhombohedral, hP3
P3m1, No. 164
3 2/m
a = 3.89 Å, c = 5.91 Å
α = 90°, β = 90°, γ = 120°
Octahedral (Pb4+)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Lead(IV) sulfide is a chemical compound with the formula PbS2. This material is generated by the reaction of the more common lead(II) sulfide, PbS, with sulfur at >600 °C and at high pressures. PbS2, like the related tin(IV) sulfide SnS2, crystallises in the cadmium iodide motif, which indicates that Pb should be assigned the formal oxidation state of 4+.[1]

Lead(IV) sulfide is a p-type semiconductor, and is also a thermoelectric material.[2]

References

  1. ^ a b Silverman, M. S. (1966). "High-pressure (70-kilobar) Synthesis of New Crystalline Lead Dichalcogenides". Inorganic Chemistry. 5 (11): 2067–9. doi:10.1021/ic50045a056.
  2. ^ Cava, R.J. (2011). "Pressure Stabilized Se-Se Dimer Formation in PbSe2". Solid State Sciences. 13: 38–41. doi:10.1016/j.solidstatesciences.2010.10.003.
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