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Lead(IV) sulfide

Names
IUPAC name lead(IV) sulfide
Other names lead disulfide
Identifiers
CAS Number	12137-74-5
3D model (JSmol)	Interactive image
ECHA InfoCard	100.032.025
PubChem CID	24863442
InChI InChI=1S/Pb.2S/q;2*-2Key: CFCOCNLKEULEBS-UHFFFAOYSA-N
SMILES ..
Properties
Chemical formula	PbS2
Molar mass	271.332 g/mol
Structure
Crystal structure	Rhombohedral, hP3
Space group	P3m1, No. 164
Point group	3 2/m
Lattice constant	a = 3.89 Å, c = 5.91 Åα = 90°, β = 90°, γ = 120°
Coordination geometry	Octahedral (Pb)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is  ?) Infobox references

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+.

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

References

1. ^ 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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