Au2Cs2F8
Au2Cs2F8 is a thermodynamically stable semiconducting compound composed of gold, cesium, and fluorine.
About Au2Cs2F8
Au2Cs2F8 is a complex fluoride compound featuring gold and cesium. As a thermodynamically stable material located on the convex hull, it represents a robust structural arrangement of its constituent elements.
This compound exhibits semiconducting electronic character, making it an intriguing subject for research into specialized electronic and optical materials. Its existence across multiple structural databases highlights its significance in the study of noble metal fluorides.
Key Properties
Cross-validated computational properties for Au2Cs2F8, 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 Au2Cs2F8, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 2.45 | 0.0000 | -16.624 | 6.00 |
| Immm (No. 71) | — | — | — | — | — |
| — | — | — | — | — | 3.69 |
Frequently Asked Questions
Common questions about Au2Cs2F8, answered from cross-validated data.
What is Au2Cs2F8?
Au2Cs2F8 is a thermodynamically stable semiconducting compound composed of gold, cesium, and fluorine.
What is the band gap of Au2Cs2F8?
Is Au2Cs2F8 a metal, semiconductor, or insulator?
Is Au2Cs2F8 thermodynamically stable?
What is the crystal structure of Au2Cs2F8?
What is the density of Au2Cs2F8?
How many polymorphs of Au2Cs2F8 are known?
What elements does Au2Cs2F8 contain?
Where does the data for Au2Cs2F8 come from?
How It Compares
As a distinct member of the gold-cesium-fluorine system, this compound serves as a critical reference point for understanding the structural diversity and stability of complex ternary fluorides.
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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