Na5Sn2
Na5Sn2 is a thermodynamically stable metallic compound formed from sodium and tin that is frequently studied for its structural properties.
About Na5Sn2
Na5Sn2 is a metallic intermetallic compound composed of sodium and tin. As a thermodynamically stable phase residing on the convex hull, it represents a robust configuration within the binary system, characterized by its lack of a band gap and distinct electronic behavior typical of metallic alloys.
This material is of significant interest in the study of alkali-metal alloys and their structural diversity. With multiple reported structures across various databases, it serves as a key reference point for researchers investigating the complex phase space of sodium-tin compounds and their potential utility in advanced electrochemical applications.
Key Properties
Cross-validated computational properties for Na5Sn2, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Na5Sn2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Applications
Where Na5Sn2 is used.
Frequently Asked Questions
Common questions about Na5Sn2, answered from cross-validated data.
What is Na5Sn2?
Na5Sn2 is a thermodynamically stable metallic compound formed from sodium and tin that is frequently studied for its structural properties.
What is Na5Sn2 used for?
What is the band gap of Na5Sn2?
Is Na5Sn2 a metal, semiconductor, or insulator?
Is Na5Sn2 thermodynamically stable?
How many polymorphs of Na5Sn2 are known?
What elements does Na5Sn2 contain?
Where does the data for Na5Sn2 come from?
How It Compares
As a thermodynamically stable member of the sodium-tin binary system, Na5Sn2 occupies a well-defined position in the structural landscape of these intermetallics, providing a stable baseline for understanding the metallic bonding and phase formation characteristics inherent to this class of materials.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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