F20Nb2Sb2
F20Nb2Sb2 is a thermodynamically stable, insulating fluoride compound containing niobium and antimony.
About F20Nb2Sb2
F20Nb2Sb2 is a complex fluoride compound featuring niobium and antimony. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration within its chemical system.
This material exhibits insulating electronic characteristics, making it a subject of interest for researchers investigating wide-gap dielectric properties. Its structural integrity suggests potential utility in specialized solid-state applications where chemical stability is paramount.
Key Properties
Cross-validated computational properties for F20Nb2Sb2, 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 F20Nb2Sb2, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 4.36 | 0.0000 | -5.761 | 3.76 |
| P-1 (No. 2) | — | — | — | — | — |
| — | — | — | — | — | 3.07 |
Applications
Where F20Nb2Sb2 is used.
Frequently Asked Questions
Common questions about F20Nb2Sb2, answered from cross-validated data.
What is F20Nb2Sb2?
F20Nb2Sb2 is a thermodynamically stable, insulating fluoride compound containing niobium and antimony.
What is F20Nb2Sb2 used for?
What is the band gap of F20Nb2Sb2?
Is F20Nb2Sb2 a metal, semiconductor, or insulator?
Is F20Nb2Sb2 thermodynamically stable?
What is the crystal structure of F20Nb2Sb2?
What is the density of F20Nb2Sb2?
How many polymorphs of F20Nb2Sb2 are known?
What elements does F20Nb2Sb2 contain?
Where does the data for F20Nb2Sb2 come from?
How It Compares
As a distinct member of the fluoride-based inorganic landscape, F20Nb2Sb2 occupies a unique position due to its specific stoichiometry and confirmed thermodynamic stability. It serves as a foundational example of how niobium and antimony can integrate into a stable, insulating lattice structure.
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).
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