Cd1Ir1La2
Cd1Ir1La2 is a semimetallic ternary alloy containing cadmium, iridium, and lanthanum that is being studied for its potential catalytic properties.

About Cd1Ir1La2
Cd1Ir1La2 is a complex intermetallic compound categorized within the platinum-group alloy catalysts. Characterized by a near-zero-gap electronic structure, it exhibits semimetallic behavior that distinguishes it from more traditional insulating or highly conductive catalyst materials. Its electronic profile suggests potential for unique charge transport phenomena in specialized catalytic environments.
As a material currently identified as residing above the thermodynamic hull, Cd1Ir1La2 represents a metastable phase within the vast landscape of ternary alloys. Its existence in structural databases highlights the ongoing research into synthesizing and stabilizing complex iridium-based systems for potential use in advanced chemical processing and energy conversion technologies.
Key Properties
Cross-validated computational properties for Cd1Ir1La2, 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 Cd1Ir1La2, 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 | 0.03 | 2.0830 | -3.392 | 0.69 |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
Applications
Where Cd1Ir1La2 is used.
Frequently Asked Questions
Common questions about Cd1Ir1La2, answered from cross-validated data.
What is Cd1Ir1La2?
Cd1Ir1La2 is a semimetallic ternary alloy containing cadmium, iridium, and lanthanum that is being studied for its potential catalytic properties.
What is Cd1Ir1La2 used for?
What is the band gap of Cd1Ir1La2?
Is Cd1Ir1La2 a metal, semiconductor, or insulator?
Is Cd1Ir1La2 thermodynamically stable?
What is the crystal structure of Cd1Ir1La2?
What is the density of Cd1Ir1La2?
How many polymorphs of Cd1Ir1La2 are known?
What elements does Cd1Ir1La2 contain?
Where does the data for Cd1Ir1La2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the group of platinum-group alloy catalysts, Cd1Ir1La2 is notable for its specific ternary composition compared to binary counterparts like LaRh or As2Ir. While many members of this class are investigated for their robust catalytic surfaces, the semimetallic nature and metastable state of this compound place it in a distinct category of experimental materials that require precise synthesis conditions compared to more thermodynamically stable siblings like GeRu.
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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