F28Sb8
F28Sb8 is a thermodynamically stable, insulating compound composed of antimony and fluorine.
About F28Sb8
F28Sb8 is a distinct fluoride compound characterized by its wide-band-gap insulating electronic profile. Its position on the convex hull indicates that it is a thermodynamically stable phase, making it a reliable subject for structural investigation within the broader landscape of antimony-based fluorides.
Because of its insulating nature and stable crystalline arrangement, this material is of interest for fundamental studies in solid-state chemistry. It serves as a reference point for understanding the bonding interactions between antimony and fluorine in complex stoichiometric ratios.
Key Properties
Cross-validated computational properties for F28Sb8, 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 F28Sb8, 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/m (No. 11) | monoclinic | 3.81 | 0.0000 | -5.085 | 4.63 |
| — | — | — | — | — | 3.71 |
| P21/m (No. 11) | — | — | — | — | — |
Applications
Where F28Sb8 is used.
Frequently Asked Questions
Common questions about F28Sb8, answered from cross-validated data.
What is F28Sb8?
F28Sb8 is a thermodynamically stable, insulating compound composed of antimony and fluorine.
What is F28Sb8 used for?
What is the band gap of F28Sb8?
Is F28Sb8 a metal, semiconductor, or insulator?
Is F28Sb8 thermodynamically stable?
What is the crystal structure of F28Sb8?
What is the density of F28Sb8?
How many polymorphs of F28Sb8 are known?
What elements does F28Sb8 contain?
Where does the data for F28Sb8 come from?
How It Compares
As a thermodynamically stable, wide-band-gap insulator, F28Sb8 represents a unique structural configuration within its class. While it lacks direct structural siblings in this context, it serves as a critical example of how antimony and fluorine can organize into stable, non-conducting 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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