Samarium(III) bromide

Chemical compound From Wikipedia, the free encyclopedia

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

Quick facts Names, Identifiers ...
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).
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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.[6]

References

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