Phosphorus heptabromide

Phosphorus heptabromide
Other names Tetrabromophosphonium tribromide
Identifiers
CAS number	14337-11-2 Y
Jmol-3D images	Image 1
SMILES Br[Br-]Br.Br[P+](Br)(Br)Br
Properties
Molecular formula	Br7P
Molar mass	590.3 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Phosphorus heptabromide is an inorganic compound with the formula PBr₇. It is one of phosphorus bromides. At normal conditions, it forms red prismatic crystals. PBr₇ can be prepared by sublimation of the mixture of phosphorus pentabromide and bromine.^[1]

The structure consists of the PBr₄⁺ cation paired with a tribromide (Br₃⁻) anion.^[2]

See also

• Phosphorus tribromide
• Phosphorus pentabromide

References

1. ^ T. E. (Thomas Edward) Thorpe. A dictionary of applied chemistry (Volume 4)
2. ^ Breneman, G. L.; Willett, R. D. (1967). "The crystal structure of phosphorus heptabromide, PBr7". Acta Crystallographica 23 (3): 467–471. doi:10.1107/S0365110X67002981.