Neodymium(II) bromide

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
CAS Number	59325-04-1 Y
3D model (JSmol)	Interactive image
InChI InChI=1S/2BrH.Nd/h2*1H;/q;;+2/p-2 Key: SNPAAONOVANSBU-UHFFFAOYSA-L
SMILES [Br-].[Br-].[Nd+2]
Properties
Chemical formula	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). Infobox references

Preparation

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

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]