MgMn3CoO8
MgMn3CoO8 is a metastable semiconducting oxide composed of magnesium, manganese, cobalt, and oxygen.
About MgMn3CoO8
MgMn3CoO8 is a complex oxide featuring a combination of magnesium, manganese, cobalt, and oxygen. As a semiconducting material, it exhibits electronic properties that make it an intriguing subject for fundamental studies in solid-state chemistry and materials design.
This compound is characterized as a metastable phase, indicating that its synthesis and preservation require specific thermodynamic conditions. Its existence within a diverse landscape of structural configurations highlights the complexity of multi-element oxide systems.
Key Properties
Cross-validated computational properties for MgMn3CoO8, aggregated across 2 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 MgMn3CoO8, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.80 | 0.0528 | -7.753 | 4.20 |
| C2/m (No. 12) | monoclinic | 1.02 | 0.0585 | -7.747 | 4.32 |
| Cm (No. 8) | monoclinic | 0.17 | 0.0589 | -7.747 | 4.32 |
| C2/m (No. 12) | monoclinic | 0.82 | 0.0606 | -7.745 | 4.27 |
| C2/m (No. 12) | monoclinic | 0.85 | 0.0636 | -7.742 | 4.30 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.75 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.32 |
| R-3m (No. 166) | Trigonal | — | — | — | 4.43 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.50 |
| R-3m (No. 166) | Trigonal | — | — | — | 4.72 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.32 |
| R-3m (No. 166) | Trigonal | — | — | — | 4.20 |
Applications
Where MgMn3CoO8 is used.
Frequently Asked Questions
Common questions about MgMn3CoO8, answered from cross-validated data.
What is MgMn3CoO8?
MgMn3CoO8 is a metastable semiconducting oxide composed of magnesium, manganese, cobalt, and oxygen.
What is MgMn3CoO8 used for?
What is the band gap of MgMn3CoO8?
Is MgMn3CoO8 a metal, semiconductor, or insulator?
Is MgMn3CoO8 thermodynamically stable?
What is the crystal structure of MgMn3CoO8?
What is the density of MgMn3CoO8?
How many polymorphs of MgMn3CoO8 are known?
What elements does MgMn3CoO8 contain?
Where does the data for MgMn3CoO8 come from?
How It Compares
As a unique multi-component oxide, MgMn3CoO8 represents a specialized case within the broader family of transition metal-based complex oxides, serving as a distinct example of how magnesium and cobalt integration modifies the structural framework of manganese-rich systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
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