Hafnium tetrabromide

Hafnium tetrabromide is the inorganic compound with the formula HfBr4. It is the most common bromide of hafnium. It is a colorless, diamagnetic moisture sensitive solid that sublimes in vacuum.[1] It adopts a structure very similar to that of zirconium tetrabromide, featuring tetrahedral Hf centers, in contrast to the polymeric nature of hafnium tetrachloride.[2]

Hafnium tetrabromide
Hafnium tetrabromide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.001
EC Number
  • 237-416-9
  • InChI=1S/4BrH.Hf/h4*1H;/q;;;;+4/p-4
    Key: FEEFWFYISQGDKK-UHFFFAOYSA-J
  • Br[Hf](Br)(Br)Br
Properties
Br4Hf
Appearance colorless solid
Density 5.094 g/cm3
Hazards
GHS labelling:
GHS05: Corrosive
Danger
H314
P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

References
  1. W. Thomas, H. Elias "Darstellung von HfCl4 und HfBr4 durch Umsetzung von Hafnium mit Geschmolzenen Metallhalogeniden" Journal of Inorganic and Nuclear Chemistry 1976, Volume 38, Pages 2227–2229. doi:10.1016/0022-1902(76)80199-6
  2. Berdonosov, S. S.; Berdonosova, D. G.; Lapitskii, A. V.; Vlasov, L. G. "X-ray study of hafnium tetrabromide" Zhurnal Neorganicheskoi Khimii, 1963, vol. 8, 531-2.
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