Plutonium(III) iodide

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Plutonium(III) iodide
Unit cell of PuBr3.png
Identifiers
3D model (JSmol)
PubChem CID
  • InChI=1S/3HI.Pu/h3*1H;/q;;;+3/p-3
    Key: OYUSUDICDNMHEI-UHFFFAOYSA-K
  • [I-].[I-].[I-].[Pu+3]
Properties
Appearancegreen solid [1]
Density 6.92 g·cm−3 [2]
Melting point 777 °C [1]
Structure
orthorhombic
Ccmm (No. 63)
a = 433 pm [2] , b = 1395 pm [2] , c = 996 pm [2]
Related compounds
Other anions
plutonium(III) hydride
plutonium(III) fluoride
plutonium(III) chloride
plutonium(III) bromide
Other cations
neptunium(III) iodide
americium(III) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Plutonium(III) iodide is the iodide of plutonium with the chemical formula PuI3.

Contents

Preparation

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

2 Pu + 3 HgI2 → 2 PuI3 + 3 Hg

It can also be produced by reacting plutonium and hydrogen iodide at 450 °C. Even if there is only a small amount of oxygen and water in the reaction, the generated plutonium(III) iodide will immediately hydrolyze into plutonium iodide oxide. [3]

2 Pu + 6 HI → 2 PuI3 + 3 H2

Properties

Plutonium(III) iodide is a green solid with a melting point of 777 °C. It is orthorhombic (plutonium(III) bromide structure), space group Ccmm (No. 63), lattice parameters a = 433 pm, b = 1395 pm and c = 996 pm. [2]

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References

  1. 1 2 Holleman, 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
  2. 1 2 3 4 5 Gmelins Handbuch der anorganischen Chemie , System Nr. 71, Transurane, Teil C, S. 154–155.
  3. 1 2 Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3, S. 1304.

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