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Contents

   



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1 Preparation  




2 Properties  




3 References  













Curium(III) bromide






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From Wikipedia, the free encyclopedia
  

Curium(III) bromide[1]
Names
Other names
  • Curium tribromide
  • Curium bromide
    • Identifiers

    CAS Number

    3D model (JSmol)
    ChemSpider

    PubChem CID

    • InChI=1S/3BrH.Cm/h3*1H;/p-3

      Key: HKCWOGXVUZTSCB-UHFFFAOYSA-K

    • [Br-].[Br-].[Br-].[Cm]

    Properties

    Chemical formula

    		 CmBr3
    Molar mass 486.782 g/mol
    Appearance White or pale yellow green solid[2]
    Density 6.87 g·cm−3[3]
    Boiling point 625 °C (1,157 °F; 898 K)
    Structure[4]

    Coordination geometry

    		 Orthorhombic

    Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

    Infobox references

    Curium(III) bromide is the bromide salt of curium.[1] It has an orthorhombic crystal structure.[4]

    Preparation

    [edit]

    Curium bromide can be produced by reacting curium chloride and ammonium bromide in a hydrogen atmosphere at 400–450 °C.[5]

    CmCl3 + 3NH4Br → CmBr3 + 3 NH4Cl

    It can also be produced by reacting curium(III) oxide and hydrobromic acid at 600 °C.[6]

    Properties

    [edit]

    Curium bromide is an ionic compound composed of Cm3+ and Br−, appearing as a colorless solid. It is orthorhombic, with space group Cmcm (No. 63) and lattice parameters a = 405 pm, b = 1266 pm and c = 912 pm.[5] Its crystal structure is isostructural with plutonium(III) bromide.

    References

    [edit]
    1. ^ a b "Curium tribromide". PubChem. 9 October 2021. Retrieved 13 October 2021.
  • ^ Ltd, Mark Winter, University of Sheffield and WebElements. "Curium Tribromide". www.webelements.com. Retrieved 13 October 2021.{{cite web}}: CS1 maint: multiple names: authors list (link)
  • ^ Gmelins Handbuch der anorganischen Chemie, System Nr. 71, Transurane, Teil C, S. 149.
  • ^ a b Katz, J.; Seaborg, Glenn. Morss, L; Edelstein, Norman; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed., Volumes 1-5). p. 1417.
  • ^ a b Asprey, L. B.; Keenan, T. K.; Kruse, F. H. (Jul 1965). "Crystal Structures of the Trifluorides, Trichlorides, Tribromides, and Triiodides of Americium and Curium". Inorganic Chemistry. 4 (7): 985–986. doi:10.1021/ic50029a013. ISSN 0020-1669.
  • ^ Burns, John H.; Peterson, J.R.; Stevenson, J.N. (Mar 1975). "Crystallographic studies of some transuranic trihalides: 239PuCl3, 244CmBr3, 249BkBr3 and 249CfBr3". Journal of Inorganic and Nuclear Chemistry. 37 (3): 743–749. doi:10.1016/0022-1902(75)80532-X.

    • Retrieved from "https://en.wikipedia.org/w/index.php?title=Curium(III)_bromide&oldid=1212209295"
    Categories: 
    ●Curium compounds
     ●Bromides
     ●Actinide halides
     Hidden categories: 
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     ●Short description is different from Wikidata
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     ●Articles without EBI source
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     ●Articles containing unverified chemical infoboxes
      


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