RbMnO4
Rubidium permanganate
RbMnO4 is a stable, semiconducting oxide material utilized primarily in research for oxygen-evolution catalysis and electrochemical energy applications.
About Rubidium permanganate
Rubidium permanganate is a semiconducting oxide that sits firmly on the thermodynamic convex hull, indicating robust structural stability. As a member of the oxide oxygen-evolution catalyst family, it plays a vital role in electrochemical processes where efficient charge transfer and oxygen production are required.
This compound is frequently investigated for its catalytic potential in energy storage and conversion systems. Its unique electronic character makes it a candidate for research into improving the kinetics of water splitting and other critical redox reactions in modern electrochemical devices.
Key Properties
Cross-validated computational properties for Rubidium permanganate, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of RbMnO4. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for RbMnO4, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 2.14 | 0.0000 | -6.459 | 3.34 |
| Pnma (No. 62) | orthorhombic | 1.91 | 0.0000 | -1.694 | — |
| — | — | 2.15 | 0.3722 | -1.334 | — |
| Pnma (No. 62) | orthorhombic | — | — | — | 3.25 |
| Pnma (No. 62) | orthorhombic | — | — | — | 3.19 |
| Pnma (No. 62) | orthorhombic | — | — | — | 3.01 |
| Pnma (No. 62) | orthorhombic | — | — | — | 3.06 |
Applications
Where Rubidium permanganate is used.
Frequently Asked Questions
Common questions about Rubidium permanganate, answered from cross-validated data.
What is RbMnO4?
RbMnO4 is a stable, semiconducting oxide material utilized primarily in research for oxygen-evolution catalysis and electrochemical energy applications.
What is RbMnO4 used for?
What is the band gap of RbMnO4?
Is RbMnO4 a metal, semiconductor, or insulator?
Is RbMnO4 thermodynamically stable?
What is the crystal structure of RbMnO4?
What is the density of RbMnO4?
How many polymorphs of RbMnO4 are known?
What elements does RbMnO4 contain?
Where does the data for RbMnO4 come from?
How It Compares
Within the oxide oxygen-evolution catalysts class.
Unlike the transition metal oxide frameworks seen in LiMn2O4 or LaMnO3, RbMnO4 features a distinct structural arrangement that influences its catalytic behavior. While many of its siblings like NiO or LiCoO2 are widely deployed in commercial battery electrodes, RbMnO4 is primarily studied for its specific role in oxygen-evolution pathways where its stability and electronic properties offer a different performance profile compared to the more common perovskite-structured catalysts.
Related Compounds
Other Oxide Oxygen-Evolution Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- cod — Data from the Crystallography Open Database (crystallography.net/cod/). Cite: Grazulis et al., J. Appl. Cryst. 42, 726 (2009). (CC0-1.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
Analyze RbMnO4 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 85 source databases.
Explore the Platform →