F40K8Li8Y8
F40K8Li8Y8 is a thermodynamically stable, insulating fluoride compound composed of potassium, lithium, and yttrium.
About F40K8Li8Y8
F40K8Li8Y8 is a complex fluoride compound characterized by its insulating electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement of fluorine, potassium, lithium, and yttrium atoms.
This material is primarily significant in fundamental materials science, where its stable crystalline configuration and wide-gap electronic properties are studied to understand the behavior of complex fluoride systems. It serves as a model for exploring ionic coordination environments in multi-element inorganic solids.
Key Properties
Cross-validated computational properties for F40K8Li8Y8, 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 F40K8Li8Y8, 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/c (No. 14) | monoclinic | 7.37 | 0.0003 | -6.176 | 3.34 |
| P21/c (No. 14) | monoclinic | 7.03 | 0.0014 | -6.174 | 3.31 |
| P21/c (No. 14) | — | — | — | — | — |
| — | — | — | — | — | 3.31 |
Applications
Where F40K8Li8Y8 is used.
Frequently Asked Questions
Common questions about F40K8Li8Y8, answered from cross-validated data.
What is F40K8Li8Y8?
F40K8Li8Y8 is a thermodynamically stable, insulating fluoride compound composed of potassium, lithium, and yttrium.
What is F40K8Li8Y8 used for?
What is the band gap of F40K8Li8Y8?
Is F40K8Li8Y8 a metal, semiconductor, or insulator?
Is F40K8Li8Y8 thermodynamically stable?
What is the crystal structure of F40K8Li8Y8?
What is the density of F40K8Li8Y8?
How many polymorphs of F40K8Li8Y8 are known?
What elements does F40K8Li8Y8 contain?
Where does the data for F40K8Li8Y8 come from?
How It Compares
As a unique multi-component fluoride, F40K8Li8Y8 occupies a specialized niche within inorganic chemistry. Unlike simpler binary fluorides, this compound integrates multiple alkali and rare-earth cations into a single stable lattice, offering a distinct structural complexity that differentiates it from more common, singular-cation 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).
Analyze F40K8Li8Y8 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →