Cu3AsO7
Cu3AsO7 is a metastable, semiconducting oxide material primarily investigated for its potential utility in catalytic applications.

About Cu3AsO7
Cu3AsO7 is a complex oxide belonging to the broader family of spinel-related catalysts. As a semiconducting material, it exhibits distinct electronic properties that differentiate it from simple binary oxides, making it a subject of interest for researchers exploring non-traditional catalytic pathways.
Despite its metastable nature, this compound provides a unique structural framework for chemical reactivity. Its existence within a diverse class of oxides highlights the potential for tuning catalytic performance through precise compositional control and structural engineering.
Key Properties
Cross-validated computational properties for Cu3AsO7, 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 Cu3AsO7, 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. |
|---|---|---|---|---|---|
| P1 (No. 1) | triclinic | 0.16 | 0.0550 | -5.721 | 4.28 |
| P21/c (No. 14) | monoclinic | 0.00 | 0.1162 | -5.660 | 4.49 |
| No. 0 | unknown | — | — | — | 4.25 |
| No. 0 | unknown | — | — | — | 1.10 |
| P1 (No. 1) | Triclinic | — | — | — | 4.28 |
| P1 (No. 1) | Triclinic | — | — | — | 4.41 |
| No. 0 | unknown | — | — | — | 1.10 |
| P1 (No. 1) | Triclinic | — | — | — | 4.61 |
Applications
Where Cu3AsO7 is used.
Frequently Asked Questions
Common questions about Cu3AsO7, answered from cross-validated data.
What is Cu3AsO7?
Cu3AsO7 is a metastable, semiconducting oxide material primarily investigated for its potential utility in catalytic applications.
What is Cu3AsO7 used for?
What is the band gap of Cu3AsO7?
Is Cu3AsO7 a metal, semiconductor, or insulator?
Is Cu3AsO7 thermodynamically stable?
What is the crystal structure of Cu3AsO7?
What is the density of Cu3AsO7?
How many polymorphs of Cu3AsO7 are known?
What elements does Cu3AsO7 contain?
Where does the data for Cu3AsO7 come from?
How It Compares
Within the spinel oxide catalysts class.
In the context of spinel-related catalysts, Cu3AsO7 occupies a more specialized niche compared to highly stable, widely utilized materials like MgAl2O4 or simple binary oxides such as CuO and ZnO. While siblings like LaMnO3 are frequently studied for their robust perovskite-based catalytic activity, Cu3AsO7 represents a more complex, metastable alternative that offers different surface interaction profiles for specialized chemical processes.
Related Compounds
Other Spinel Oxide Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
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