Niobium(V) bromide

Niobium(V) bromide
Other names niobium pentabromide
Identifiers
CAS number	13748-45-0 Y
ChemSpider	19388901 Y
EC number	236-778-5
Jmol-3D images	Image 1
SMILES [Br-].[Br-].[Br-].[Br-].[Br-].[Nb+5]
InChI InChI=1S/5BrH.Nb/h5*1H;/q;;;;;+5/p-5 Y Key: DSYRJFDOOSKABR-UHFFFAOYSA-I Y InChI=1/5BrH.Nb/h5*1H;/q;;;;;+5/p-5 Key: DSYRJFDOOSKABR-AACRGIKGAJ
Properties
Molecular formula	NbBr5
Molar mass	492.430 g/mol
Appearance	wine red to black crystals
Density	4.36 g/cm3
Melting point	254 °C, 527 K, 489 °F
Boiling point	364 °C, 637 K, 687 °F
Solubility in water	soluble
Structure
Crystal structure	orthorhombic
Hazards
MSDS	MSDS
Y bromide (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Niobium(V) bromide is the inorganic compound with the formula Nb₂Br₁₀. It is a diamagnetic, orange solid that hydrolyses readily. The compound adopts an edge-shared bioctahedral structure, which means that two NbBr₅ units are joined by a pair of bromide bridges. The pentachloride and pentaiodides of Nb and Ta share this structural motif. There is no bond between the Nb centres. It is prepared by the reaction of bromine with niobium metal at high temperature in a tube furnace.^[1]

References

1. ^ Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.

External links

• Web Elements