K2SbF5
K2SbF5 is a thermodynamically stable, insulating inorganic compound characterized by a wide band gap and diverse structural configurations.
About K2SbF5
K2SbF5 is a thermodynamically stable inorganic compound that exists on the convex hull, indicating significant structural robustness. As a wide-band-gap insulator, it possesses electronic properties characteristic of materials that resist electrical conduction under standard conditions.
This compound is notable for its structural diversity, supported by multiple reported crystalline arrangements across major databases. Its stability and insulating nature make it a subject of interest for researchers investigating complex fluoride-based systems and their potential for specialized chemical applications.
Key Properties
Cross-validated computational properties for K2SbF5, 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 K2SbF5, 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 | 4.62 | 0.0000 | -4.914 | 3.57 |
| Cmcm (No. 63) | orthorhombic | 4.68 | 0.0015 | -4.913 | 3.67 |
| P21/c (No. 14) | monoclinic | 4.69 | 0.0026 | -4.912 | 3.29 |
| P21 (No. 4) | monoclinic | 4.73 | 0.0045 | -4.910 | 3.27 |
| P21 (No. 4) | monoclinic | 4.38 | 0.0093 | -4.905 | 3.26 |
| P21/c (No. 14) | monoclinic | 4.54 | 0.0443 | -4.870 | 3.12 |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.28 |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.44 |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.27 |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.38 |
| Cmcm (No. 63) | — | — | — | — | — |
| P21/c (No. 14) | Monoclinic | — | — | — | 3.20 |
Applications
Where K2SbF5 is used.
Frequently Asked Questions
Common questions about K2SbF5, answered from cross-validated data.
What is K2SbF5?
K2SbF5 is a thermodynamically stable, insulating inorganic compound characterized by a wide band gap and diverse structural configurations.
What is K2SbF5 used for?
What is the band gap of K2SbF5?
Is K2SbF5 a metal, semiconductor, or insulator?
Is K2SbF5 thermodynamically stable?
What is the crystal structure of K2SbF5?
What is the density of K2SbF5?
How many polymorphs of K2SbF5 are known?
What elements does K2SbF5 contain?
Where does the data for K2SbF5 come from?
How It Compares
As a distinct inorganic fluoride, K2SbF5 serves as a representative example of stable, insulating complex salts. Within its broader class of materials, it is distinguished by its thermodynamic favorability and structural versatility, providing a baseline for understanding how potassium and antimony-fluoride frameworks contribute to stable solid-state architectures.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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