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Uranium(III) bromide
Identifiers
3D model (JSmol)
  • Br[U](Br)Br
Properties
UBr3
Molar mass 477.741
Appearance brown solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Uranium(III) bromide is an inorganic compound with the chemical formula UBr3. It is radioactive.

Preparation

Uranium(III) bromide can be obtained by the reaction of uranium metal or uranium(III) hydride and hydrogen bromide,[1] or it can also be prepared by the thermal decomposition of NH4UBr4·1.5CH3CN·6H2O. [2] It is difficult to synthesize due to its rapid oxidation in both water and air.[3]

References

  1. ^ Barnard, Robert; Bullock, Joseph I.; Gellatly, Barry J.; Larkworthy, Leslie F. (1973). "Chemistry of the trivalent actinides. Part III. Some chemical and physical properties of hydrated uranium(III) fluoride and the anhydrous chloride, bromide, and iodide. The stability of uranium(III) in aqueous solution and in organic solvents". Journal of the Chemical Society, Dalton Transactions (6): 604–607. doi:10.1039/dt9730000604. ISSN 0300-9246.
  2. ^ Lichtscheidl, Alejandro; Pagano, Justin; Scott, Brian; Nelson, Andrew; Kiplinger, Jaqueline (2016-01-06). "Expanding the Chemistry of Actinide Metallocene Bromides. Synthesis, Properties and Molecular Structures of the Tetravalent and Trivalent Uranium Bromide Complexes: (C5Me4R)2UBr2, (C5Me4R)2U(O-2,6-iPr2C6H3)(Br), and [K(THF)][(C5Me4R)2UBr2] (R = Me, Et)". Inorganics. 4 (1): 1. doi:10.3390/inorganics4010001. ISSN 2304-6740.
  3. ^ Barnard, Robert (1969). The chemistry of tervalent uranium (PhD thesis). University of Surrey. Retrieved 2023-12-21.