Al4F4K4O6
Al4F4K4O6 is a stable, insulating inorganic compound containing aluminum, fluorine, potassium, and oxygen.
About Al4F4K4O6
Al4F4K4O6 is a complex inorganic compound composed of aluminum, fluorine, potassium, and oxygen. As a wide-band-gap insulator, it exhibits electronic properties characteristic of stable dielectric materials, making it a subject of interest for fundamental solid-state studies.
Its thermodynamic stability suggests it is a viable candidate for synthesis and experimental characterization. With multiple reported structures, this compound serves as a distinct point of interest for researchers exploring the intersection of aluminates and fluorides.
Key Properties
Cross-validated computational properties for Al4F4K4O6, 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 Al4F4K4O6, 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. |
|---|---|---|---|---|---|
| C2/m (No. 12) | monoclinic | 4.02 | 0.0119 | -6.362 | 2.48 |
| — | — | — | — | — | 2.48 |
| C2/m (No. 12) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Al4F4K4O6, answered from cross-validated data.
What is Al4F4K4O6?
Al4F4K4O6 is a stable, insulating inorganic compound containing aluminum, fluorine, potassium, and oxygen.
What is the band gap of Al4F4K4O6?
Is Al4F4K4O6 a metal, semiconductor, or insulator?
Is Al4F4K4O6 thermodynamically stable?
What is the crystal structure of Al4F4K4O6?
What is the density of Al4F4K4O6?
How many polymorphs of Al4F4K4O6 are known?
What elements does Al4F4K4O6 contain?
Where does the data for Al4F4K4O6 come from?
How It Compares
As a unique inorganic phase, Al4F4K4O6 occupies a specialized niche within the broader landscape of complex aluminum-based salts. It serves as a representative example of how the integration of fluorine and oxygen into a potassium-aluminum framework can yield stable, insulating architectures.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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