Californium(III) bromide

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Californium(III) bromide
Names
IUPAC name
Californium(III) bromide
Identifiers
3D model (
JSmol
)
ChemSpider
  • InChI=1S/3BrH.Cf/h3*1H;/p-3
    Key: NJIJEQJUGGORBI-UHFFFAOYSA-K
SMILES
  • [Br-].[Br-].[Br-].[Cf]
Properties
Br3Cf
Molar mass 491 g·mol−1
Appearance green solid
Structure
Monoclinic, mS16
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Californium(III) bromide is an inorganic compound, a salt with a chemical formula CfBr3. Like in californium(III) oxide (Cf2O3) and other californium halides, including californium(III) fluoride (CfF3), californium(III) chloride, and californium(III) iodide (CfI3), the californium atom has an oxidation state of +3.

Properties

Californium(III) bromide is shown to crystallize in both the

AlCl3 and FeCl3 type structures. In the former structure, the californium ion is six coordinated and the three independent Cf-Br bond lengths are 279.5±0.9 pm, 282.7±1.1 pm, and 282.8±0.8 pm.[1]

Californium(III) bromide partially decomposes into californium(II) bromide under high temperature.[2]

In the radioactive decay of berkelium-249 to californium-249, the oxidation number and crystal structure are preserved. The six-coordinate berkelium(III) bromide (AlCl3-type monoclinic structure) decays to produce a six-coordinate californium(III) bromide, whereas an eight-coordinate berkelium(III) bromide (PuBr3-type, orthorhombic structure) produces an eight-coordinate californium(III) bromide.[3]

See also

References

  1. doi:10.1016/0022-1902(75)80532-X
    .
  2. doi:10.1016/0022-1902(75)80878-5
    .
  3. doi:10.1021/ic50210a003
    .
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