Ac2O3
actinium oxide · actinium(III) oxide
Actinium oxide is a stable, insulating binary compound of actinium and oxygen used primarily in fundamental actinide research.
About actinium oxide
Actinium oxide is a stable, insulating binary compound composed of actinium and oxygen. As a member of the actinide oxide family, it represents a fundamental material for understanding the chemical behavior of the heaviest elements in the periodic table. Its thermodynamic stability on the convex hull underscores its importance as a baseline structure for actinium-based chemistry.
This material is primarily studied for its unique electronic characteristics and its role in specialized nuclear research. Given its status as a rare and radioactive oxide, it serves as a critical subject for fundamental materials science investigations into the bonding and structural evolution of actinide systems.
Key Properties
Cross-validated computational properties for actinium oxide, 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 actinium oxide is used.
Frequently Asked Questions
Common questions about actinium oxide, answered from cross-validated data.
What is Ac2O3?
Actinium oxide is a stable, insulating binary compound of actinium and oxygen used primarily in fundamental actinide research.
What is Ac2O3 used for?
What is the band gap of Ac2O3?
Is Ac2O3 a metal, semiconductor, or insulator?
Is Ac2O3 thermodynamically stable?
How many polymorphs of Ac2O3 are known?
What elements does Ac2O3 contain?
Where does the data for Ac2O3 come from?
How It Compares
As a rare actinide oxide, this compound occupies a unique position in materials science, serving as a primary reference point for the behavior of actinium within oxide lattices. Unlike more common transition metal oxides, its chemistry is defined by the specific electronic configuration of the actinium ion, making it a foundational study for understanding the broader class of heavy element oxides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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