CdPt3
CdPt3 is a thermodynamically stable metallic alloy composed of cadmium and platinum that is widely documented for its structural properties.
About CdPt3
CdPt3 is a metallic intermetallic compound belonging to the platinum-group alloy catalyst class. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration of cadmium and platinum atoms that maintains structural integrity under standard conditions.
Its significance lies in its extensive characterization, with numerous reported structures across major materials databases. This high level of data richness makes it a valuable model system for understanding the electronic and structural behavior of platinum-based alloys in catalytic environments.
Key Properties
Cross-validated computational properties for CdPt3, aggregated across 5 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 CdPt3, 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. |
|---|---|---|---|---|---|
| Cmmm (No. 65) | orthorhombic | 0.00 | 0.0000 | -4.963 | 18.01 |
| Pm-3m (No. 221) | cubic | 0.00 | 0.0077 | -4.955 | 17.96 |
| R-3m (No. 166) | trigonal | 0.00 | 0.1273 | -4.836 | 17.48 |
| C2 (No. 5) | Monoclinic | — | — | — | 11.67 |
| R-3m (No. 166) | Trigonal | — | — | — | 17.63 |
| Pm-3m (No. 221) | Cubic | — | — | — | 17.95 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 15.40 |
| R-3m (No. 166) | Trigonal | — | — | — | 17.63 |
| Cmmm (No. 65) | Orthorhombic | — | — | — | 17.99 |
| Pm-3m (No. 221) | Cubic | — | — | — | 18.99 |
| — | — | — | — | — | 17.47 |
| P-6m2 (No. 187) | — | — | — | — | — |
Applications
Where CdPt3 is used.
Frequently Asked Questions
Common questions about CdPt3, answered from cross-validated data.
What is CdPt3?
CdPt3 is a thermodynamically stable metallic alloy composed of cadmium and platinum that is widely documented for its structural properties.
What is CdPt3 used for?
What is the band gap of CdPt3?
Is CdPt3 a metal, semiconductor, or insulator?
Is CdPt3 thermodynamically stable?
What is the crystal structure of CdPt3?
What is the density of CdPt3?
How many polymorphs of CdPt3 are known?
What elements does CdPt3 contain?
Where does the data for CdPt3 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloys, CdPt3 stands out for its structural stability compared to more complex or less ordered members like As2Pt or Ga2Ru. While many alloys in this class are investigated for their specific surface reactivity, CdPt3 is notable for the high volume of structural data available, positioning it as a well-defined reference point for researchers comparing metallic bonding trends across the series.
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).
- mpaloe — Data from mpaloe.
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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