Polonium tetrabromide

Polonium tetrabromide

Identifiers
CAS Number	60996-98-7
3D model (JSmol)	Interactive image
PubChem CID	154204552
InChI InChI=1S/4BrH.Po/h4*1H;/q;;;;+4/p-4 Key: MOAWHUMOOBCMOF-UHFFFAOYSA-J
SMILES Br[Po](Br)(Br)Br
Properties
Chemical formula	Br4Po
Molar mass	529 g·mol−1
Appearance	pale red solid [1]
Solubility	soluble in ethanol [2] soluble in bromine [2]
Structure
Crystal structure	cubic crystal system
Space group	Fm3m (No. 225)
Lattice constant	a = 5.6 Å
Related compounds
Other anions	polonium tetrafluoride polonium tetrachloride polonium tetraiodide
Other cations	selenium tetrabromide tellurium tetrabromide
Related compounds	polonium tetrabromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Polonium tetrabromide, is a bromide of polonium, with the chemical formula PoBr₄.

Preparation

Polonium tetrabromide can be formed by the direct reaction of bromine and polonium at 200 °C to 250 °C. ^[2]

Like polonium tetraiodide, polonium tetrabromide can also be produced by the reaction of polonium dioxide and hydrogen bromide: ^[2]

PoO₂ + 4 HBr → PoBr₄ + 2 H₂O

Properties

Polonium tetrabromide is a light red solid that is easily deliquescent. ^[1] It crystallizes in the cubic crystal system, with space group Fm3m (No. 225) and lattice parameter a = 5.6 Å. ^[3]

References

1. P. E. Figgins (1961), The Radiochemistry of Polonium, National Academies, p. 13
2. M. Schmidt, W. Siebert, K. W. Bagnall (October 2013). The Chemistry of Sulphur, Selenium, Tellurium and Polonium: Pergamon Texts in Inorganic Chemistry. Elsevier. pp. 960–961. ISBN   978-1483158655.
3. H. J. Emeléus, A. G. Sharpe (January 1962). Advances in Inorganic Chemistry and Radiochemistry. Academic Press. p. 216. ISBN   0080578535.