Cs2F14Sb4
Cs2F14Sb4 is a thermodynamically stable, insulating crystalline compound containing cesium, fluorine, and antimony.
About Cs2F14Sb4
Cs2F14Sb4 is a complex inorganic compound composed of cesium, fluorine, and antimony. As a thermodynamically stable phase residing on the convex hull, it represents a robust configuration of these elements that maintains structural integrity under standard conditions.
This material exhibits insulating electronic characteristics, typical of its wide-gap nature. Its existence across multiple structural databases highlights its significance as a well-defined crystalline entity within the broader landscape of complex fluoride-based materials.
Key Properties
Cross-validated computational properties for Cs2F14Sb4, 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 Cs2F14Sb4, 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/c (No. 15) | monoclinic | 4.30 | 0.0000 | -5.063 | 4.74 |
| C2/c (No. 15) | monoclinic | 4.11 | 0.0123 | -5.051 | 4.53 |
| C2/c (No. 15) | monoclinic | 4.56 | 0.0253 | -5.038 | 4.47 |
| C2/c (No. 15) | monoclinic | 3.18 | 0.1140 | -4.949 | 3.69 |
| — | — | — | — | — | 4.17 |
| — | — | — | — | — | 3.40 |
| C2/c (No. 15) | — | — | — | — | — |
Applications
Where Cs2F14Sb4 is used.
Frequently Asked Questions
Common questions about Cs2F14Sb4, answered from cross-validated data.
What is Cs2F14Sb4?
Cs2F14Sb4 is a thermodynamically stable, insulating crystalline compound containing cesium, fluorine, and antimony.
What is Cs2F14Sb4 used for?
What is the band gap of Cs2F14Sb4?
Is Cs2F14Sb4 a metal, semiconductor, or insulator?
Is Cs2F14Sb4 thermodynamically stable?
What is the crystal structure of Cs2F14Sb4?
What is the density of Cs2F14Sb4?
How many polymorphs of Cs2F14Sb4 are known?
What elements does Cs2F14Sb4 contain?
Where does the data for Cs2F14Sb4 come from?
How It Compares
As a unique crystalline phase, Cs2F14Sb4 serves as a benchmark for stability within its specific chemical system, demonstrating how the combination of heavy alkali metals and antimony fluorides can yield highly ordered, stable insulating frameworks.
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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