Phosphorus heptabromide

Phosphorus heptabromide
Names
	Other names Tetrabromophosphonium tribromide; Perbromophosphonium tribromide; Phosphorus heptabromide
Identifiers
CAS Number	14337-11-2 ;
3D model (JSmol)	Interactive image;
PubChem CID	71308257;
CompTox Dashboard (EPA)	DTXSID60745445;
	InChI InChI=1S/Br4P.Br3/c1-5(2,3)4;1-3-2/q+1;-1 Key: QBFSXBUUGDHSFY-UHFFFAOYSA-N;
	SMILES Br[P+](Br)(Br)Br.Br[Br-]Br;
Properties
Chemical formula	Br7P
Molar mass	590.302 g·mol−1
Structure
Crystal structure	orthorhombic
Space group	Pnma, No. 64
Lattice constant	a = 9.35 Å, b = 7.94 Å, c = 14.69 Å
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Phosphorus heptabromide is an inorganic compound with the formula PBr₇. It is one of the phosphorus bromides. At normal conditions, it forms red prismatic crystals. PBr₇ can be prepared by the sublimation of a mixture of phosphorus pentabromide and bromine.^[2]

PBr₅ + Br₂ → PBr₇

The structure consists of a PBr₄⁺ cation paired with a tribromide (Br₃^–) anion, and the tribromide is non-symmetric.^[1]

References[]

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

‹ The template below (Bromides) is being considered for merging. See templates for discussion to help reach a consensus. ›

This inorganic compound–related article is a stub. You can help Wikipedia by .