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Uranium(III) iodide

Uranium triiodide is an inorganic compound with the chemical formula UI3. It is a black solid that is soluble in water.

Production

Uranium triiodide can be obtained from the direct reaction of its constituent elements: :2 U + 3 I2 → 2 UI3

When the reaction is conducted in tetrahydrofuran (THF), the product is the blue complex UI3(THF)4.

Properties

It crystallizes in the orthorhombic crystal system (plutonium tribromide-type) in the space group Ccmm with the lattice parameters a = 432.8 pm, b = 1401.1 pm, and c = 1000.5 pm and four formula units per unit cell.

Uranium triiodide can be used as a Lewis acid catalyst for various Diels-Alder reactions carried out under mild conditions.

References

References

  1. Arnold F. Holleman, Nils Wiberg: ''Lehrbuch der Anorganischen Chemie'', 102. Auflage, de Gruyter, Berlin 2007, {{ISBN. 978-3-11-017770-1, S. 1969.
  2. (1978). "Handbuch der präparativen anorganischen Chemie. 2". Enke.
  3. David L. Clark. (1996). "Inorganic Syntheses".
  4. (1975-03-01). "The structure of uranium(III) triiodide by neutron diffraction". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry.
  5. (Oct 2000). "Uranium iodides as catalysts for Diels–Alder reactions". Journal of Molecular Catalysis A: Chemical.
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uranium(iii)-compounds iodides actinide-halides
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