Ag4Cl8Pd2
Ag4Cl8Pd2 is a semiconducting platinum-group alloy catalyst that is theoretically stable enough to be synthesized for specialized chemical applications.
About Ag4Cl8Pd2
Ag4Cl8Pd2 is a specialized semiconducting material within the platinum-group alloy catalyst class. Its unique electronic structure makes it a subject of interest for researchers investigating complex metal-halide interactions in catalytic processes.
Positioned as a near-hull compound, it is considered a viable candidate for experimental synthesis. Its structural characteristics suggest potential utility in chemical transformation pathways where precise electronic control is required.
Key Properties
Cross-validated computational properties for Ag4Cl8Pd2, 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 Ag4Cl8Pd2, 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. |
|---|---|---|---|---|---|
| Cmce (No. 64) | orthorhombic | 0.95 | 0.0016 | -13.472 | 4.65 |
| Cmce (No. 64) | — | — | — | — | — |
| — | — | — | — | — | 3.73 |
Applications
Where Ag4Cl8Pd2 is used.
Frequently Asked Questions
Common questions about Ag4Cl8Pd2, answered from cross-validated data.
What is Ag4Cl8Pd2?
Ag4Cl8Pd2 is a semiconducting platinum-group alloy catalyst that is theoretically stable enough to be synthesized for specialized chemical applications.
What is Ag4Cl8Pd2 used for?
What is the band gap of Ag4Cl8Pd2?
Is Ag4Cl8Pd2 a metal, semiconductor, or insulator?
Is Ag4Cl8Pd2 thermodynamically stable?
What is the crystal structure of Ag4Cl8Pd2?
What is the density of Ag4Cl8Pd2?
How many polymorphs of Ag4Cl8Pd2 are known?
What elements does Ag4Cl8Pd2 contain?
Where does the data for Ag4Cl8Pd2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Unlike more conventional intermetallic catalysts such as BaPd or LaRh, Ag4Cl8Pd2 incorporates halide components that significantly alter its electronic and chemical behavior. While many members of this class are metallic, this compound exhibits semiconducting properties, distinguishing it from the typical behavior of binary platinum-group alloys like GeRu or As2Pt.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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