Cu1Mn1Rh2
Cu1Mn1Rh2 is a semiconducting ternary alloy composed of copper, manganese, and rhodium that is primarily studied for its structural complexity within the platinum-group catalyst class.
About Cu1Mn1Rh2
Cu1Mn1Rh2 is a semiconducting intermetallic compound categorized within the platinum-group alloy catalyst family. Its complex structural profile is evidenced by a significant number of reported configurations, highlighting the intricate bonding environments possible within this ternary system.
While this material is identified as being above the thermodynamic hull, its electronic character makes it an intriguing subject for fundamental studies in catalysis. Its composition of copper, manganese, and rhodium positions it as a unique candidate for exploring electronic tuning in transition metal alloys.
Key Properties
Cross-validated computational properties for Cu1Mn1Rh2, 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 Cu1Mn1Rh2, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.20 | 2.7840 | -15.915 | 0.89 |
| Pm (No. 6) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| R3m (No. 160) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
Applications
Where Cu1Mn1Rh2 is used.
Frequently Asked Questions
Common questions about Cu1Mn1Rh2, answered from cross-validated data.
What is Cu1Mn1Rh2?
Cu1Mn1Rh2 is a semiconducting ternary alloy composed of copper, manganese, and rhodium that is primarily studied for its structural complexity within the platinum-group catalyst class.
What is Cu1Mn1Rh2 used for?
What is the band gap of Cu1Mn1Rh2?
Is Cu1Mn1Rh2 a metal, semiconductor, or insulator?
Is Cu1Mn1Rh2 thermodynamically stable?
What is the crystal structure of Cu1Mn1Rh2?
What is the density of Cu1Mn1Rh2?
How many polymorphs of Cu1Mn1Rh2 are known?
What elements does Cu1Mn1Rh2 contain?
Where does the data for Cu1Mn1Rh2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Unlike more stable or widely utilized members of the platinum-group alloy class such as LaRh or GeRu, Cu1Mn1Rh2 exists in a metastable state that presents distinct challenges for synthesis and characterization. While siblings like As2Pt or IrSe2 often exhibit well-defined catalytic pathways, this compound serves as a specialized case study in how ternary alloying can shift electronic properties away from typical metallic behavior.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
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).
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