NaSn
Sodium stannide is an intermetallic compound formed from sodium and tin. It is primarily studied for its structural properties and potential roles in advanced electrochemical energy storage systems.
NaSn
Overview
Key Properties
Cross-validated computational properties for NaSn, aggregated across 4 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.
0.34 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
12
4 databases, 8 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for NaSn, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| I41/acd (No. 142) | tetragonal | 0.34 | 0.0000 | -14.421 | 3.98 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.62 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.58 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.52 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.93 |
| P63/mmc (No. 194) | — | — | — | — | — |
| P-1 (No. 2) | Triclinic | — | — | — | 3.12 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.40 |
| P4/nmm (No. 129) | Tetragonal | — | — | — | 2.74 |
| Cmme (No. 67) | Orthorhombic | — | — | — | 2.68 |
| C2/m (No. 12) | Monoclinic | — | — | — | 2.55 |
| R-3m (No. 166) | — | — | — | — | — |
Uses
Applications
Where NaSn is used.
Electrochemical researchMaterials science studiesBattery anode development
Reference
Frequently Asked Questions
Common questions about NaSn, answered from cross-validated data.
What is NaSn?
Sodium stannide is an intermetallic compound formed from sodium and tin. It is primarily studied for its structural properties and potential roles in advanced electrochemical energy storage systems.
More questions
What is NaSn used for?
NaSn is used in electrochemical research, materials science studies, and battery anode development.
What is the band gap of NaSn?
NaSn has a DFT-computed band gap of 0.34 eV across 12 reported structures.
Is NaSn a metal, semiconductor, or insulator?
With a band gap up to 0.34 eV it is a semiconductor.
Is NaSn thermodynamically stable?
Yes — NaSn sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of NaSn?
The lowest-energy reported polymorph of NaSn is tetragonal symmetry, space group I41/acd (No. 142).
What is the density of NaSn?
The computed density of the ground-state structure of NaSn is 3.98 g/cm³.
How many polymorphs of NaSn are known?
12 structures of NaSn are reported across 4 databases, spanning 8 distinct space groups.
What elements does NaSn contain?
NaSn contains Na and Sn (2 elements).
Where does the data for NaSn come from?
NaSn data is cross-referenced from materials_project, mpaloe, nomad, jarvis.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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