Neodymium(II) bromide is an inorganic compound of neodymium and bromide.

Neodymium(II) bromide
Names
IUPAC name
Neodymium(II) bromide
Other names
  • Neodymium dibromide
  • Neodymium bromide
Identifiers
3D model (JSmol)
  • InChI=1S/2BrH.Nd/h2*1H;/q;;+2/p-2
    Key: SNPAAONOVANSBU-UHFFFAOYSA-L
  • [Br-].[Br-].[Nd+2]
Properties
NdBr2
Molar mass 304.05 g/mol
Appearance Green solid
Melting point 725 °C (1,337 °F; 998 K)
Related compounds
Other anions
Neodymium(II) fluoride, Neodymium(II) chloride, Neodymium(II) iodide
Other cations
Praseodymium(II) bromide, Cerium(II) bromide, Samarium(II) bromide
Related compounds
Lead(II) chloride, Neodymium(III) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Preparation

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Neodymium(II) bromide can be obtained via the reduction of neodymium(III) bromide with neodymium in a vacuum at 800 to 900 °C.[1]

Nd + 2 NdBr3 → 3 NdBr2

Properties

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Neodymium(II) bromide is a dark green solid. The compound is extremely 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 hydrates by absorbing moisture, but these are unstable and more or less rapidly transform into oxybromides with evolution of hydrogen. The compound has the same crystal structure as lead(II) chloride type.[1]

References

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  1. ^ a b Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1081.