F6Mg2Na2
F6Mg2Na2 is a stable, insulating fluoride compound composed of magnesium, sodium, and fluorine.
About F6Mg2Na2
F6Mg2Na2 is a complex fluoride compound characterized by its insulating electronic nature and high thermodynamic stability. As a material residing on the convex hull, it represents a robust phase that maintains structural integrity under standard conditions. Its composition of magnesium, sodium, and fluorine points toward a crystalline framework typical of stable halide-based inorganic solids. The material is of significant interest for fundamental solid-state chemistry studies, particularly where high-stability insulating lattices are required for theoretical modeling or specialized applications. Its existence across multiple structural databases underscores its relevance as a well-defined, reproducible phase in materials science.
Key Properties
Cross-validated computational properties for F6Mg2Na2, 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.
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.
Reported Structures
Lowest-energy structures reported for F6Mg2Na2, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 6.75 | 0.0000 | -6.929 | 3.15 |
| Cmcm (No. 63) | orthorhombic | 6.62 | 0.0314 | -6.898 | 3.23 |
| Pm-3m (No. 221) | cubic | 5.93 | 0.0416 | -6.888 | 2.81 |
| No. 0 | unknown | — | — | — | 1.11 |
| Cmc21 (No. 36) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| — | — | — | — | — | 1.84 |
Applications
Where F6Mg2Na2 is used.
Frequently Asked Questions
Common questions about F6Mg2Na2, answered from cross-validated data.
What is F6Mg2Na2?
F6Mg2Na2 is a stable, insulating fluoride compound composed of magnesium, sodium, and fluorine.
What is F6Mg2Na2 used for?
What is the band gap of F6Mg2Na2?
Is F6Mg2Na2 a metal, semiconductor, or insulator?
Is F6Mg2Na2 thermodynamically stable?
What is the crystal structure of F6Mg2Na2?
What is the density of F6Mg2Na2?
How many polymorphs of F6Mg2Na2 are known?
What elements does F6Mg2Na2 contain?
Where does the data for F6Mg2Na2 come from?
How It Compares
As a thermodynamically stable fluoride, F6Mg2Na2 serves as a foundational example of multi-cation halide systems. While it lacks direct structural siblings in this specific classification, it stands as a representative model for how magnesium and sodium can coexist within a stable fluorine-rich lattice to create a wide-gap insulating material.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
Analyze F6Mg2Na2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →