UBr4

uranium tetrabromide · uranium(IV) bromide

Uranium tetrabromide is a stable, semiconducting inorganic halide compound primarily used in specialized chemical synthesis and actinide research.

BrU
Crystal structure of UBr4
Ground-state structure · Materials Project
Overview

About uranium tetrabromide

Uranium tetrabromide is a crystalline halide compound characterized by its semiconducting electronic behavior. As a thermodynamically stable phase residing on the convex hull, it represents a well-defined state of uranium in the plus-four oxidation state. Its structural integrity makes it a subject of interest for fundamental studies in actinide materials science.

This compound is primarily utilized in advanced chemical research and as a precursor for the synthesis of organometallic uranium complexes. Its ability to participate in specific coordination environments allows researchers to probe the bonding characteristics of heavy elements within a stable inorganic framework.

At a glance

Key Properties

Cross-validated computational properties for uranium tetrabromide, aggregated across 3 databases.

Band Gap

0.21 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

6
3 databases, 1 space group
Uses

Applications

Where uranium tetrabromide is used.

Precursor for organometallic uranium synthesisFundamental actinide researchChemical vapor transport studies
Reference

Frequently Asked Questions

Common questions about uranium tetrabromide, answered from cross-validated data.

What is UBr4?

Uranium tetrabromide is a stable, semiconducting inorganic halide compound primarily used in specialized chemical synthesis and actinide research.

More questions
What is UBr4 used for?
uranium tetrabromide (UBr4) is used in precursor for organometallic uranium synthesis, fundamental actinide research, and chemical vapor transport studies.
What is the band gap of UBr4?
uranium tetrabromide (UBr4) has a DFT-computed band gap of 0.21 eV across 6 reported structures.
Is UBr4 a metal, semiconductor, or insulator?
With a band gap up to 0.21 eV it is a semiconductor.
Is UBr4 thermodynamically stable?
Yes — uranium tetrabromide (UBr4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of UBr4 are known?
6 structures of UBr4 are reported across 3 databases, spanning 1 distinct space group.
What elements does UBr4 contain?
uranium tetrabromide (UBr4) contains Br and U (2 elements).
Where does the data for UBr4 come from?
UBr4 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct actinide halide, uranium tetrabromide serves as a foundational reference point for understanding the behavior of heavy metal bromides. It occupies a unique niche in inorganic chemistry, providing a stable platform for investigating the electronic and structural trends that govern the reactivity of uranium-based compounds.

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

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