La2Pd2O5
La2Pd2O5 is a stable, semiconducting ternary oxide composed of lanthanum, palladium, and oxygen.
About La2Pd2O5
La2Pd2O5 is a complex ternary oxide featuring lanthanum and palladium. As a thermodynamically stable phase located on the convex hull, it represents a robust crystalline arrangement that persists under standard conditions.
This material exhibits semiconducting electronic behavior, making it an intriguing subject for studies involving electronic transport and catalytic potential. Its structural diversity is highlighted by multiple reported configurations across various databases.
Key Properties
Cross-validated computational properties for La2Pd2O5, 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 La2Pd2O5, 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. |
|---|---|---|---|---|---|
| P42/m (No. 84) | tetragonal | 1.18 | 0.0000 | -7.569 | 7.50 |
| P42/m (No. 84) | — | — | — | — | — |
| P42/m (No. 84) | — | — | — | — | — |
| P42/m (No. 84) | Tetragonal | — | — | — | 7.33 |
| P42/m (No. 84) | Tetragonal | — | — | — | 7.71 |
| P42/m (No. 84) | Tetragonal | — | — | — | 7.51 |
Synthesis Routes
Literature-extracted synthesis procedures targeting La2Pd2O5.
Applications
Where La2Pd2O5 is used.
Frequently Asked Questions
Common questions about La2Pd2O5, answered from cross-validated data.
What is La2Pd2O5?
La2Pd2O5 is a stable, semiconducting ternary oxide composed of lanthanum, palladium, and oxygen.
What is La2Pd2O5 used for?
What is the band gap of La2Pd2O5?
Is La2Pd2O5 a metal, semiconductor, or insulator?
Is La2Pd2O5 thermodynamically stable?
What is the crystal structure of La2Pd2O5?
What is the density of La2Pd2O5?
How many polymorphs of La2Pd2O5 are known?
How is La2Pd2O5 synthesized?
What elements does La2Pd2O5 contain?
Where does the data for La2Pd2O5 come from?
How It Compares
As a distinct ternary oxide, La2Pd2O5 occupies a unique position in materials science, serving as a stable reference point for lanthanum-palladium-oxygen systems where complex stoichiometry influences electronic and structural properties.
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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