Rb2Pd
Rubidium palladide is an intermetallic compound composed of an alkali metal and a transition metal. It is primarily studied by researchers investigating the fundamental electronic and structural properties of binary metallic systems.
Key Properties
Cross-validated computational properties for Rb2Pd, 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.
Reported Structures
Lowest-energy structures reported for Rb2Pd, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.53 | 0.1004 | -2.280 | 3.29 |
| R-3m (No. 166) | trigonal | 0.78 | 0.1015 | -2.279 | 3.28 |
| Fm-3m (No. 225) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P-1 (No. 2) | Triclinic | — | — | — | 3.19 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.34 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.84 |
| R-3m (No. 166) | Trigonal | — | — | — | 3.47 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.43 |
| R-3m (No. 166) | Trigonal | — | — | — | 3.28 |
| R-3m (No. 166) | Trigonal | — | — | — | 3.35 |
| Cm (No. 8) | Monoclinic | — | — | — | 2.72 |
Applications
Where Rb2Pd is used.
Frequently Asked Questions
Common questions about Rb2Pd, answered from cross-validated data.
What is Rb2Pd?
Rubidium palladide is an intermetallic compound composed of an alkali metal and a transition metal. It is primarily studied by researchers investigating the fundamental electronic and structural properties of binary metallic systems.
What is Rb2Pd used for?
What is the band gap of Rb2Pd?
Is Rb2Pd a metal, semiconductor, or insulator?
Is Rb2Pd thermodynamically stable?
What is the crystal structure of Rb2Pd?
What is the density of Rb2Pd?
How many polymorphs of Rb2Pd are known?
What elements does Rb2Pd contain?
Where does the data for Rb2Pd come from?
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).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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