Palladium(II) sulfide
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| Other names
Palladium monosulfide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.031.979 |
| EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| PdS | |
| Appearance | brown solid[2] or black[3] or grey[4] metallic crystals |
| Related compounds | |
Other anions
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PdO |
Other cations
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NiS, PtS |
Related compounds
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PdS2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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
[edit]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
[edit]The crystal structure of PdS contains approximately square planar palladium centres and tetrahedral sulfur centres.[1]
Reactivity
[edit]If palladium(II) sulfide is heated with an excess of sulfur, palladium disulfide is formed:[2]
- PdS + S → PdS2
Related compounds
[edit]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
[edit]References
[edit]- ^ a b 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.
- ^ a b c d Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1152. ISBN 978-0-08-037941-8.
- ^ a b 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.
- ^ a b c d 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.