Co4K8O10Rb4
Co4K8O10Rb4 is a stable semiconducting quaternary oxide composed of cobalt, potassium, rubidium, and oxygen.
About Co4K8O10Rb4
Co4K8O10Rb4 is a complex quaternary oxide characterized by its semiconducting electronic nature. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of cobalt, potassium, rubidium, and oxygen atoms.
This material is of interest to researchers investigating the interplay between transition metals and alkali metal frameworks. Its stability and distinct electronic profile make it a subject of study for those exploring advanced inorganic solid-state chemistry.
Key Properties
Cross-validated computational properties for Co4K8O10Rb4, 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 Co4K8O10Rb4, 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. |
|---|---|---|---|---|---|
| P42/mnm (No. 136) | tetragonal | 1.09 | 0.0000 | -4.896 | 3.33 |
| — | — | — | — | — | 3.18 |
| P42/mnm (No. 136) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Co4K8O10Rb4, answered from cross-validated data.
What is Co4K8O10Rb4?
Co4K8O10Rb4 is a stable semiconducting quaternary oxide composed of cobalt, potassium, rubidium, and oxygen.
What is the band gap of Co4K8O10Rb4?
Is Co4K8O10Rb4 a metal, semiconductor, or insulator?
Is Co4K8O10Rb4 thermodynamically stable?
What is the crystal structure of Co4K8O10Rb4?
What is the density of Co4K8O10Rb4?
How many polymorphs of Co4K8O10Rb4 are known?
What elements does Co4K8O10Rb4 contain?
Where does the data for Co4K8O10Rb4 come from?
How It Compares
As a unique quaternary oxide, this compound serves as a distinct example of how cobalt-based frameworks can incorporate multiple alkali metal species to achieve thermodynamic stability within a semiconducting electronic regime.
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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