View source for Chemistry:Neodymium(II) bromide

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| ImageFile = Cotunnite structure.png
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| Name           = Neodymium(II) bromide
| IUPACName      = Neodymium(II) bromide
| OtherNames     = {{Unbulleted list
  | Neodymium dibromide
  | Neodymium bromide
  }}
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| Section1       = {{Chembox Identifiers
| CASNo          = 59325-04-1
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| PubChem        = 
| SMILES         = [Br-].[Br-].[Nd+2]
| StdInChI=1S/2BrH.Nd/h2*1H;/q;;+2/p-2
| StdInChIKey=SNPAAONOVANSBU-UHFFFAOYSA-L
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| Section2 = {{Chembox Properties
| Appearance     = Green solid
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| Formula        = NdBr<sub>2</sub>
| MolarMass      = 304.05 g/mol
| MeltingPtC     = 725
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| Section3       = {{Chembox Structure
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| Section4       = {{Chembox Thermochemistry
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| Section7       = {{Chembox Hazards
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| Section9       = {{Chembox Related
| OtherAnions    = Neodymium(II) fluoride, [[Chemistry:Neodymium(II) chloride|Neodymium(II) chloride]], [[Chemistry:Neodymium(II) iodide|Neodymium(II) iodide]]
| OtherCations   = Praseodymium(II) bromide, Cerium(II) bromide, [[Chemistry:Samarium(II) bromide|Samarium(II) bromide]]
| OtherCompounds = [[Chemistry:Lead(II) chloride|Lead(II) chloride]], [[Chemistry:Neodymium(III) bromide|Neodymium(III) bromide]]
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}}

'''Neodymium(II) bromide''' is an [[Chemistry:Inorganic compound|inorganic compound]] of [[Chemistry:Neodymium|neodymium]] and [[Chemistry:Bromide|bromide]].

== Preparation ==
Neodymium(II) bromide can be obtained via the reduction of [[Chemistry:Neodymium(III) bromide|neodymium(III) bromide]] with neodymium in a [[Physics:Vacuum|vacuum]] at 800 to 900 °C.<ref name="brauer">Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u.&nbsp;a.: ''Handbuch der Präparativen Anorganischen Chemie.'' 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1081.<!-- ev. Band II oder falsche Seitenzahl --></ref>
:<chem>Nd + 2 NdBr3 -> 3 NdBr2</chem>

== Properties ==
Neodymium(II) bromide is a dark green solid. The compound is extremely [[Physics:Hygroscopic|hygroscopic]] and can only be stored and handled under carefully dried inert gas or under a high vacuum. In air or on contact with water, it converts to [[Chemistry:Hydrate|hydrate]]s by absorbing moisture, but these are unstable and more or less rapidly transform into oxybromides with evolution of [[Chemistry:Hydrogen|hydrogen]]. The compound has the same [[Chemistry:Crystal structure|crystal structure]] as [[Chemistry:Lead(II) chloride|lead(II) chloride]] type.<ref name="brauer" />

== References ==
<references />

{{Neodymium compounds}}

[[Category:Bromides]]

{{Sourceattribution|Neodymium(II) bromide}}