Al6F24K4Na2
Al6F24K4Na2 is a stable, insulating complex fluoride compound composed of aluminum, fluorine, potassium, and sodium.
About Al6F24K4Na2
Al6F24K4Na2 is a complex fluoride compound characterized by its insulating electronic nature and wide band gap. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement of aluminum, fluorine, potassium, and sodium ions.
This material is of interest for its structural complexity, supported by its presence across multiple independent databases. Its stability and insulating properties make it a subject of study for researchers investigating advanced inorganic fluoride frameworks.
Key Properties
Cross-validated computational properties for Al6F24K4Na2, 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.
Reported Structures
Lowest-energy structures reported for Al6F24K4Na2, 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. |
|---|---|---|---|---|---|
| P21/m (No. 11) | monoclinic | 6.83 | 0.0000 | -5.741 | 3.00 |
| Pnma (No. 62) | orthorhombic | 6.85 | 0.0008 | -5.741 | 3.01 |
| P21/m (No. 11) | — | — | — | — | — |
| — | — | — | — | — | 2.73 |
| — | — | — | — | — | 2.78 |
| — | — | — | — | — | 2.78 |
| — | — | — | — | — | 2.76 |
Applications
Where Al6F24K4Na2 is used.
Frequently Asked Questions
Common questions about Al6F24K4Na2, answered from cross-validated data.
What is Al6F24K4Na2?
Al6F24K4Na2 is a stable, insulating complex fluoride compound composed of aluminum, fluorine, potassium, and sodium.
What is Al6F24K4Na2 used for?
What is the band gap of Al6F24K4Na2?
Is Al6F24K4Na2 a metal, semiconductor, or insulator?
Is Al6F24K4Na2 thermodynamically stable?
What is the crystal structure of Al6F24K4Na2?
What is the density of Al6F24K4Na2?
How many polymorphs of Al6F24K4Na2 are known?
What elements does Al6F24K4Na2 contain?
Where does the data for Al6F24K4Na2 come from?
How It Compares
As a unique inorganic fluoride, Al6F24K4Na2 serves as a distinct example of how alkali and aluminum cations can coordinate within a stable fluorine-rich lattice. It stands as a well-defined, thermodynamically favorable structure within the broader landscape of complex fluoride materials.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- 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).
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