Vanadium(II) bromide

Vanadium(II) bromide is a inorganic compound with the formula VBr₂. It adopts the cadmium iodide structure, featuring octahedral V(II) centers.^[1] A hexahydrate is also known. The hexahydrate undergoes partial dehydration to give the tetrahydrate. Both the hexa- and tetrahydrates are bluish in color.^[2] The compound is produced by the reduction of vanadium(III) bromide with hydrogen.

Vanadium(II) bromide

Names
IUPAC name Vanadium(II) bromide
Other names Vanadium dibromide
Identifiers
CAS Number	14890-41-6 Y
3D model (JSmol)	Interactive image
ChemSpider	8461357 Y
PubChem CID	10285888
CompTox Dashboard (EPA)	DTXSID10437762
InChI InChI=1S/2BrH.V/h2*1H;/q;;+2/p-2 Key: WSJLOGNSKRVGAD-UHFFFAOYSA-L
SMILES Br[V]Br
Properties
Chemical formula	VBr2
Molar mass	210.750 g/mol
Appearance	light-brown solid
Density	4.58 g/cm3
Melting point	827 °C (1,521 °F; 1,100 K)
Boiling point	1,227 °C (2,241 °F; 1,500 K)
Solubility in water	reacts
Magnetic susceptibility (χ)	+3230.0·10−6 cm3/mol
Structure
Crystal structure	trigonal
Related compounds
Other anions	vanadium(II) chloride, vanadium(II) iodide
Related compounds	vanadium(III) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Further reading

• Stebler, A.; Leuenberger, B.; Guedel, H. U. "Synthesis and crystal growth of A₃M₂X₉ (A = Cs, Rb; M = Ti, V, Cr; X = Cl, Br)" Inorganic Syntheses (1989), volume 26, pages 377–85.