Na3OsO5
Na3OsO5 is a thermodynamically stable, semimetallic sodium osmate oxide used in fundamental materials science research.
About Na3OsO5
Na3OsO5 is a complex oxide featuring sodium and osmium. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that maintains structural integrity under standard conditions. Its composition highlights the unique chemical interplay between alkali metals and transition metal oxides.
This material exhibits a near-zero-gap electronic character, placing it in the category of semimetallic compounds. Such electronic properties are of significant interest for researchers investigating the transition between insulating and metallic states in ternary oxide systems.
Key Properties
Cross-validated computational properties for Na3OsO5, 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 Na3OsO5 is used.
Frequently Asked Questions
Common questions about Na3OsO5, answered from cross-validated data.
What is Na3OsO5?
Na3OsO5 is a thermodynamically stable, semimetallic sodium osmate oxide used in fundamental materials science research.
What is Na3OsO5 used for?
What is the band gap of Na3OsO5?
Is Na3OsO5 a metal, semiconductor, or insulator?
Is Na3OsO5 thermodynamically stable?
How many polymorphs of Na3OsO5 are known?
What elements does Na3OsO5 contain?
Where does the data for Na3OsO5 come from?
How It Compares
As a distinct ternary oxide, Na3OsO5 serves as a foundational example of sodium-based osmium chemistry. While it currently stands as a unique entry in this structural class, its stability and electronic profile provide a critical benchmark for modeling the behavior of heavier transition metal oxides in solid-state synthesis.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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