Cs6F14Si2
Cs6F14Si2 is a stable, insulating inorganic compound containing cesium, fluorine, and silicon.
About Cs6F14Si2
Cs6F14Si2 is a complex inorganic compound composed of cesium, fluorine, and silicon. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement within its chemical system.
This material functions as a wide-band-gap insulator, a characteristic that makes it of interest for specialized electronic and optical applications where insulating behavior is required. Its structural consistency across multiple databases highlights its reliability as a distinct chemical entity.
Key Properties
Cross-validated computational properties for Cs6F14Si2, 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 Cs6F14Si2, 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. |
|---|---|---|---|---|---|
| P4/mbm (No. 127) | tetragonal | 5.63 | 0.0000 | -12.930 | 4.44 |
| — | — | — | — | — | 3.78 |
| P4/mbm (No. 127) | — | — | — | — | — |
Applications
Where Cs6F14Si2 is used.
Frequently Asked Questions
Common questions about Cs6F14Si2, answered from cross-validated data.
What is Cs6F14Si2?
Cs6F14Si2 is a stable, insulating inorganic compound containing cesium, fluorine, and silicon.
What is Cs6F14Si2 used for?
What is the band gap of Cs6F14Si2?
Is Cs6F14Si2 a metal, semiconductor, or insulator?
Is Cs6F14Si2 thermodynamically stable?
What is the crystal structure of Cs6F14Si2?
What is the density of Cs6F14Si2?
How many polymorphs of Cs6F14Si2 are known?
What elements does Cs6F14Si2 contain?
Where does the data for Cs6F14Si2 come from?
How It Compares
As a unique compound within its specific chemical system, Cs6F14Si2 serves as a foundational reference point for understanding the interplay between alkali metals and fluorosilicates. It occupies a stable position in the phase space, providing a benchmark for the synthesis and characterization of related complex fluoride structures.
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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