PBr5

Phosphorus pentabromide · Phosphorus(V) bromide

Phosphorus pentabromide is a stable, semiconducting phosphorus-bromine compound used primarily as a reagent in synthetic organic chemistry.

BrP
Crystal structure of PBr5
Ground-state structure · Materials Project
Overview

About Phosphorus pentabromide

Phosphorus pentabromide is a distinct phosphorus halide that exists as a thermodynamically stable phase on the convex hull. Its semiconducting electronic character makes it an interesting subject for structural analysis, supported by a significant body of reported experimental and computational data.

This compound serves as a reactive reagent in synthetic chemistry, particularly in the transformation of organic functional groups. Its stability and well-characterized structural profile allow it to function as a reliable chemical intermediate in various laboratory applications.

At a glance

Key Properties

Cross-validated computational properties for Phosphorus pentabromide, aggregated across 3 databases.

Band Gap

1.62 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

12
3 databases, 4 space groups
Uses

Applications

Where Phosphorus pentabromide is used.

Brominating agentSynthetic organic reagentChemical intermediate
Reference

Frequently Asked Questions

Common questions about Phosphorus pentabromide, answered from cross-validated data.

What is PBr5?

Phosphorus pentabromide is a stable, semiconducting phosphorus-bromine compound used primarily as a reagent in synthetic organic chemistry.

More questions
What is PBr5 used for?
Phosphorus pentabromide (PBr5) is used in brominating agent, synthetic organic reagent, and chemical intermediate.
What is the band gap of PBr5?
Phosphorus pentabromide (PBr5) has a DFT-computed band gap of 1.62 eV across 12 reported structures.
Is PBr5 a metal, semiconductor, or insulator?
With a band gap up to 1.62 eV it is a semiconductor.
Is PBr5 thermodynamically stable?
Yes — Phosphorus pentabromide (PBr5) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of PBr5 are known?
12 structures of PBr5 are reported across 3 databases, spanning 4 distinct space groups.
What elements does PBr5 contain?
Phosphorus pentabromide (PBr5) contains Br and P (2 elements).
Where does the data for PBr5 come from?
PBr5 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a standalone member of the phosphorus halide family in this context, phosphorus pentabromide represents a key reference point for understanding the bonding and structural trends of higher-valency phosphorus compounds.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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