Ge2Li1Rh1
Ge2Li1Rh1 is a semiconducting ternary intermetallic compound belonging to the class of platinum-group alloy catalysts.
About Ge2Li1Rh1
Ge2Li1Rh1 is a complex ternary intermetallic compound categorized within the platinum-group alloy catalysts. Its electronic character is defined as semiconducting, distinguishing it from the typically metallic behavior often associated with rhodium-bearing alloy systems. Given its status as being above the thermodynamic hull, it represents a metastable phase that offers unique insights into the structural diversity of germanium-lithium-rhodium systems.
This material is of significant interest in fundamental materials science due to the high number of reported structures associated with its composition. Its potential utility lies in its specialized electronic properties, which are being investigated for applications where precise control over charge carrier behavior is required within a catalytic framework.
Key Properties
Cross-validated computational properties for Ge2Li1Rh1, 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 Ge2Li1Rh1, 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 | 0.19 | 2.0592 | -2.984 | 0.70 |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Pm (No. 6) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
Applications
Where Ge2Li1Rh1 is used.
Frequently Asked Questions
Common questions about Ge2Li1Rh1, answered from cross-validated data.
What is Ge2Li1Rh1?
Ge2Li1Rh1 is a semiconducting ternary intermetallic compound belonging to the class of platinum-group alloy catalysts.
What is Ge2Li1Rh1 used for?
What is the band gap of Ge2Li1Rh1?
Is Ge2Li1Rh1 a metal, semiconductor, or insulator?
Is Ge2Li1Rh1 thermodynamically stable?
What is the crystal structure of Ge2Li1Rh1?
What is the density of Ge2Li1Rh1?
How many polymorphs of Ge2Li1Rh1 are known?
What elements does Ge2Li1Rh1 contain?
Where does the data for Ge2Li1Rh1 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the broader family of platinum-group alloy catalysts, Ge2Li1Rh1 occupies a distinct niche compared to more conventional metallic phases like GeRu or LaRh. While many of its siblings exhibit robust metallic conductivity, Ge2Li1Rh1 is notable for its semiconducting nature, making it a structurally complex outlier that challenges standard expectations for rhodium-based intermetallics.
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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