MgMn4O8
This inorganic compound is a mixed-metal oxide containing magnesium and manganese. It is primarily studied for its electrochemical properties and potential utility in energy storage systems.
Overview
Key Properties
Cross-validated computational properties for MgMn4O8, 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.
0.09–0.77 eV
Range across DFT structures
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.
0.040 eV/atom
Best (lowest) across sources
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.
Metastable
1 DFT source
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
32
2 databases, 11 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for MgMn4O8, 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 | 0.00 | 0.0397 | -8.058 | 4.05 |
| Imm2 (No. 44) | orthorhombic | 0.28 | 0.0424 | -8.055 | 4.10 |
| R-3m (No. 166) | trigonal | 0.77 | 0.0472 | -8.050 | 3.93 |
| Pc (No. 7) | monoclinic | 0.29 | 0.0492 | -8.048 | 4.08 |
| R-3m (No. 166) | trigonal | 0.00 | 0.0593 | -8.038 | 4.03 |
| P21/c (No. 14) | monoclinic | 0.38 | 0.0718 | -8.025 | 4.09 |
| C2/m (No. 12) | monoclinic | 0.09 | 0.0751 | -8.022 | 4.35 |
| Pm (No. 6) | monoclinic | 0.59 | 0.0802 | -8.017 | 4.28 |
| I-4m2 (No. 119) | tetragonal | 0.00 | 0.0850 | -8.012 | 4.07 |
| Cm (No. 8) | monoclinic | 0.00 | 0.1242 | -7.973 | 4.08 |
| Imm2 (No. 44) | orthorhombic | 0.00 | 0.2028 | -7.894 | 4.63 |
| Imm2 (No. 44) | orthorhombic | 0.09 | 0.2049 | -7.892 | 4.08 |
Uses
Applications
Where MgMn4O8 is used.
Battery electrode researchCatalysisMaterials science research
Reference
Frequently Asked Questions
Common questions about MgMn4O8, answered from cross-validated data.
What is MgMn4O8?
This inorganic compound is a mixed-metal oxide containing magnesium and manganese. It is primarily studied for its electrochemical properties and potential utility in energy storage systems.
More questions
What is MgMn4O8 used for?
MgMn4O8 is used in battery electrode research, catalysis, and materials science research.
What is the band gap of MgMn4O8?
MgMn4O8 has a DFT-computed band gap of 0.09–0.77 eV across 32 reported structures.
Is MgMn4O8 a metal, semiconductor, or insulator?
With a band gap up to 0.77 eV it is a semiconductor.
Is MgMn4O8 thermodynamically stable?
MgMn4O8 has a lowest energy above hull of 0.040 eV/atom (metastable).
What is the crystal structure of MgMn4O8?
The lowest-energy reported polymorph of MgMn4O8 is triclinic symmetry, space group P-1 (No. 2).
What is the density of MgMn4O8?
The computed density of the ground-state structure of MgMn4O8 is 4.05 g/cm³.
How many polymorphs of MgMn4O8 are known?
32 structures of MgMn4O8 are reported across 2 databases, spanning 11 distinct space groups.
What elements does MgMn4O8 contain?
MgMn4O8 contains Mg, Mn, and O (3 elements).
Where does the data for MgMn4O8 come from?
MgMn4O8 data is cross-referenced from materials_project, mpaloe.
Explore
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
Analyze MgMn4O8 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →