AsRu
AsRu is a metallic, metastable platinum-group alloy used primarily in catalytic research and materials science applications.
About AsRu
AsRu is a metallic compound belonging to the platinum-group alloy catalyst class. As a metastable phase, it represents a specialized structural configuration that offers unique catalytic potential for researchers investigating high-performance materials.
Its metallic character ensures efficient electron transport, which is a critical feature for catalytic activity. Given the high volume of structural data available for this compound, it serves as a significant subject for studies focused on the stability and reactivity of ruthenium-based binary systems.
Key Properties
Cross-validated computational properties for AsRu, aggregated across 4 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of AsRu. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for AsRu, 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. |
|---|---|---|---|---|---|
| — | — | 0.00 | 0.0334 | -0.263 | — |
| Pnma (No. 62) | orthorhombic | 0.00 | 0.0380 | -20.371 | 9.58 |
| Pnma (No. 62) | orthorhombic | 0.00 | 0.0792 | -0.182 | — |
| — | — | 0.00 | 0.1690 | -0.128 | — |
| — | — | 0.00 | 0.2316 | -0.065 | — |
| — | — | 0.00 | 0.2689 | -0.028 | — |
| — | — | 0.00 | 0.2979 | 0.001 | — |
| — | — | 0.00 | 0.3002 | 0.004 | — |
| — | — | 0.00 | 0.3038 | 0.007 | — |
| — | — | 0.00 | 0.3072 | 0.011 | — |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.3394 | 0.078 | — |
| — | — | 0.00 | 0.4204 | 0.124 | — |
Applications
Where AsRu is used.
Frequently Asked Questions
Common questions about AsRu, answered from cross-validated data.
What is AsRu?
AsRu is a metallic, metastable platinum-group alloy used primarily in catalytic research and materials science applications.
What is AsRu used for?
What is the band gap of AsRu?
Is AsRu a metal, semiconductor, or insulator?
Is AsRu thermodynamically stable?
What is the crystal structure of AsRu?
What is the density of AsRu?
How many polymorphs of AsRu are known?
What elements does AsRu contain?
Where does the data for AsRu come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse family of platinum-group alloys, AsRu occupies a distinct niche compared to more common members like GeRu or Ga2Ru. While many of its siblings exhibit varying degrees of thermodynamic stability, AsRu is notable for its metastable nature, providing a different structural pathway for catalytic interactions than the more robustly studied intermetallic phases.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
Analyze AsRu in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 85 source databases.
Explore the Platform →