UBr5
UBr5 is a thermodynamically stable semiconducting uranium bromide compound used in fundamental actinide research.
About UBr5
Uranium pentabromide is a semiconducting actinide halide that occupies a thermodynamically stable position on the convex hull. Its existence as a well-defined compound highlights the complex bonding capabilities of uranium when coordinated with heavy halogens.
This material is of significant interest in actinide chemistry for understanding the electronic behavior of high-valent uranium species. Its structural diversity, evidenced by multiple reported configurations, makes it a subject of fundamental research into the stability of rare-earth and actinide halides.
Key Properties
Cross-validated computational properties for UBr5, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where UBr5 is used.
Frequently Asked Questions
Common questions about UBr5, answered from cross-validated data.
What is UBr5?
UBr5 is a thermodynamically stable semiconducting uranium bromide compound used in fundamental actinide research.
What is UBr5 used for?
What is the band gap of UBr5?
Is UBr5 a metal, semiconductor, or insulator?
Is UBr5 thermodynamically stable?
How many polymorphs of UBr5 are known?
What elements does UBr5 contain?
Where does the data for UBr5 come from?
How It Compares
As a specialized actinide halide, UBr5 represents a unique point in the landscape of uranium-bromine chemistry, serving as a benchmark for the stability of higher-valent uranium halides in the absence of other closely related pentavalent counterparts.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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