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Plutonium(III) iodide

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Plutonium(III) iodide
Identifiers

CAS Number	13813-46-2
3D model (JSmol)	Interactive image
PubChem CID	145816492
InChI InChI=1S/3HI.Pu/h3*1H;/q;;;+3/p-3 Key: OYUSUDICDNMHEI-UHFFFAOYSA-K
SMILES [I-].[I-].[I-].[Pu+3]
Properties
Appearance	green solid^[1]
Density	6.92 g·cm⁻³^[2]
Melting point	777 °C^[1]
Structure
Crystal structure	orthorhombic
Space group	Ccmm (No. 63)
Lattice constant	a = 433 pm^[2],b = 1395 pm^[2],c = 996 pm^[2]
Related compounds
Otheranions	plutonium(III) hydride plutonium(III) fluoride plutonium(III) chloride plutonium(III) bromide
Othercations	neptunium(III) iodide americium(III) iodide
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Plutonium(III) iodide is theiodide ofplutonium with the chemical formula PuI₃.

Preparation

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Plutonium(III) iodide can be formed by the reaction of plutonium andmercury(II) iodide:^[3]

2 Pu + 3 HgI₂ → 2 PuI₃ + 3 Hg

It can also be produced by reacting plutonium andhydrogen iodide at 450 °C. Even if there is only a small amount ofoxygen andwater in the reaction, the generated plutonium(III) iodide will immediately hydrolyze intoplutonium oxyiodide.^[3]

2 Pu + 6 HI → 2 PuI₃ + 3 H₂

Properties

[edit]

Plutonium(III) iodide is a green solid with a melting point of 777 °C. It isorthorhombic (plutonium(III) bromide structure),space groupCcmm (No. 63),lattice parametersa = 433 pm,b = 1395 pm andc = 996 pm.^[2]

References

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^^a ^bHolleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.),Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, San Diego/Berlin: Academic Press/De Gruyter, p. 1969,ISBN 0-12-352651-5
^^a ^b ^c ^d ^eGmelins Handbuch der anorganischen Chemie, System Nr. 71, Transurane, Teil C, S. 154–155.
^^a ^bGeorg Brauer (Hrsg.), unter Mitarbeit vonMarianne Baudler u. a.:Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3, S. 1304.

External reading

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Clark, David L.; Hecker, Siegfried S.; Jarvinen, Gordon D.; Neu, Mary P. (2006), Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean (eds.),"Plutonium",The Chemistry of the Actinide and Transactinide Elements, Dordrecht: Springer Netherlands, pp. 813–1264,doi:10.1007/1-4020-3598-5_7,ISBN 978-1-4020-3555-5, retrieved2023-09-15{{citation}}: CS1 maint: work parameter with ISBN (link)