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
CAS Number	13777-22-5
3D model (JSmol)	Interactive image
ChemSpider	75547
ECHA InfoCard	100.034.001
EC Number	237-416-9
PubChem CID	83725
CompTox Dashboard (EPA)	DTXSID2065628
InChI InChI=1S/4BrH.Hf/h4*1H;/q;;;;+4/p-4 Key: FEEFWFYISQGDKK-UHFFFAOYSA-J
SMILES Br[Hf](Br)(Br)Br
Properties
Chemical formula	Br4Hf
Appearance	colorless solid
Density	5.094 g/cm3
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	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