Samarium(III) bromide

Samarium(III) bromide
Names
IUPAC name
samarium(III) bromide
Other names
samarium tribromide
tribromosamarium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.938 Edit this at Wikidata
EC Number
  • 237-347-4
  • InChI=1S/3BrH.6H2O.Sm/h3*1H;6*1H2;/q;;;;;;;;;+3/p-3
    Key: LXJDCZVUWJNXRL-UHFFFAOYSA-K
  • Br[Sm](Br)Br
  • [Br-].[Br-].[Br-].[Sm+3]
Properties
SmBr3
Molar mass 390.07 g·mol−1
Appearance Light yellow solid[1][2]
Melting point 700 °C (1,292 °F; 973 K)<[3]
+972.0·10−6 cm3/mol
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335[3]
P261, P305+P351+P338[3]
Related compounds
Other anions
 Samarium(III) fluoride
Samarium(III) chloride
Other cations
 Samarium(II) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Samarium(III) bromide is a crystalline compound of one samarium and three bromine atoms with the chemical formula of SmBr3. Samarium(III) bromide is a dark brown powder at room temperature.[4] The compound has a crystal structure isotypic to that of plutonium(III) bromide.[5][6]

Preparation

SmBr3·6H2O can be crystallized by dissolving samarium oxide in 40% hydrobromic acid. The hydrate and ammonium bromide are heated in a vacuum to obtain the anhydrous form of samarium(III) bromide.[2]

Other compounds

Samarium(III) bromide forms some compounds with hydrazine, such as SmBr3·3N2H4·H2O which is a pale yellow needle-shaped crystal that is soluble in water and ethanol but insoluble in benzene, with d20 °C = 3.147 g/cm3.[7]

References

  1. ^ Haynes, William M. (2016-06-24). CRC Handbook of Chemistry and Physics 97th Edition. CRC Press. pp. 4–83. ISBN 978-1-4987-5428-6.
  2. ^ a b 林平娣, 吴国庆. 无水三溴化钐和三溴化镱的制备 Archived 2022-01-01 at the Wayback Machine[J]. 化学试剂, 1991(1):13-14.
  3. ^ a b c "Samarium(III) bromide anhydrous, beads, −10 mesh, 99.99% | Sigma-Aldrich". www.sigmaaldrich.com. Retrieved 21 December 2016.
  4. ^ Elements, American. "Samarium(III) Bromide Hexahydrate". American Elements. Retrieved 21 December 2016.
  5. ^ Christoph Janiak, Hans-Jürgen Meyer, Dietrich Gudat, Ralf Alsfasser (2012). Riedel Moderne Anorganische Chemie. Walter de Gruyter. ISBN 978-3-11-024901-9.{{cite book}}: CS1 maint: multiple names: authors list (link)
  6. ^ Wells, A. F. (1984). Structural Inorganic Chemistry (5th ed.). Oxford University Press. p. 421. ISBN 978-0-19-965763-6.
  7. ^ Uchenye zapiski: Serii︠a︡ khimicheskikh nauk (SM Kirov adyna Azărbai̐jan Dȯvlăt Universiteti; 1977), page 37. Retrieved 14 March 2021.


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