Na3NpO8
Na3NpO8 is a semiconducting ternary neptunium oxide that serves as a subject for studying the stability and electronic properties of actinide compounds.
About Na3NpO8
Na3NpO8 is a complex inorganic compound containing sodium, neptunium, and oxygen. As a semiconducting material, it represents a specific intersection of actinide chemistry and alkali metal coordination, offering insights into the electronic behavior of transuranic elements within oxide frameworks.
Despite its existence in multiple structural databases, the compound is characterized as being above the thermodynamic hull, suggesting it is a metastable phase. Its study is primarily driven by the need to understand the fundamental bonding and stability of neptunium in high-oxidation states for nuclear material science.
Key Properties
Cross-validated computational properties for Na3NpO8, 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 Na3NpO8 is used.
Frequently Asked Questions
Common questions about Na3NpO8, answered from cross-validated data.
What is Na3NpO8?
Na3NpO8 is a semiconducting ternary neptunium oxide that serves as a subject for studying the stability and electronic properties of actinide compounds.
What is Na3NpO8 used for?
What is the band gap of Na3NpO8?
Is Na3NpO8 a metal, semiconductor, or insulator?
Is Na3NpO8 thermodynamically stable?
How many polymorphs of Na3NpO8 are known?
What elements does Na3NpO8 contain?
Where does the data for Na3NpO8 come from?
How It Compares
As a unique neptunium-based oxide, Na3NpO8 serves as a specialized case study within actinide chemistry. Unlike more common binary oxides, this ternary phase highlights the challenges of stabilizing highly oxidized actinide centers, placing it in a distinct category of synthetic inorganic materials that require precise control over chemical potential to exist.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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