As2Cs4Li2O8
As2Cs4Li2O8 is a stable, insulating crystalline oxide composed of arsenic, cesium, lithium, and oxygen.
About As2Cs4Li2O8
As2Cs4Li2O8 is a complex oxide containing arsenic, cesium, and lithium. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that maintains structural integrity under standard conditions.
This material exhibits a wide-band-gap insulating electronic character, which is typical for complex oxides of this nature. Its unique combination of alkali metals and an arsenic-oxygen framework makes it an interesting subject for fundamental research into solid-state chemistry and ionic transport.
Key Properties
Cross-validated computational properties for As2Cs4Li2O8, 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 As2Cs4Li2O8, 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. |
|---|---|---|---|---|---|
| Cmc21 (No. 36) | orthorhombic | 3.73 | 0.0000 | -5.620 | 4.30 |
| Cmc21 (No. 36) | — | — | — | — | — |
| — | — | — | — | — | 3.40 |
Frequently Asked Questions
Common questions about As2Cs4Li2O8, answered from cross-validated data.
What is As2Cs4Li2O8?
As2Cs4Li2O8 is a stable, insulating crystalline oxide composed of arsenic, cesium, lithium, and oxygen.
What is the band gap of As2Cs4Li2O8?
Is As2Cs4Li2O8 a metal, semiconductor, or insulator?
Is As2Cs4Li2O8 thermodynamically stable?
What is the crystal structure of As2Cs4Li2O8?
What is the density of As2Cs4Li2O8?
How many polymorphs of As2Cs4Li2O8 are known?
What elements does As2Cs4Li2O8 contain?
Where does the data for As2Cs4Li2O8 come from?
How It Compares
As a distinct inorganic compound, As2Cs4Li2O8 occupies a specific niche within the landscape of complex lithium-cesium arsenates. While it shares the insulating nature common to many oxides in this structural family, its specific stoichiometry and stability profile distinguish it as a unique member of this chemical class.
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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