As2Cu2O8Pb2
As2Cu2O8Pb2 is a thermodynamically stable, semiconducting inorganic compound containing arsenic, copper, oxygen, and lead.

About As2Cu2O8Pb2
As2Cu2O8Pb2 is a complex inorganic compound composed of arsenic, copper, oxygen, and lead. As a thermodynamically stable phase located on the convex hull, it represents a robust configuration of these elements that maintains structural integrity under standard conditions.
This material exhibits semiconducting electronic character, making it a subject of interest for researchers investigating electronic and optical properties in multi-element oxide systems. Its existence across multiple reported structures highlights its significance in the study of complex mineral-like inorganic phases.
Key Properties
Cross-validated computational properties for As2Cu2O8Pb2, 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 As2Cu2O8Pb2, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 1.82 | 0.0000 | -6.113 | 6.04 |
| P-1 (No. 2) | — | — | — | — | — |
| — | — | — | — | — | 6.21 |
Applications
Where As2Cu2O8Pb2 is used.
Frequently Asked Questions
Common questions about As2Cu2O8Pb2, answered from cross-validated data.
What is As2Cu2O8Pb2?
As2Cu2O8Pb2 is a thermodynamically stable, semiconducting inorganic compound containing arsenic, copper, oxygen, and lead.
What is As2Cu2O8Pb2 used for?
What is the band gap of As2Cu2O8Pb2?
Is As2Cu2O8Pb2 a metal, semiconductor, or insulator?
Is As2Cu2O8Pb2 thermodynamically stable?
What is the crystal structure of As2Cu2O8Pb2?
What is the density of As2Cu2O8Pb2?
How many polymorphs of As2Cu2O8Pb2 are known?
What elements does As2Cu2O8Pb2 contain?
Where does the data for As2Cu2O8Pb2 come from?
How It Compares
As a unique inorganic compound, As2Cu2O8Pb2 serves as a distinct example of how heavy metals and metalloids integrate into stable oxide frameworks. While it does not share its specific structural class with other common compounds, its stability profile provides a foundational reference point for understanding the synthesis and behavior of complex lead-copper-arsenate systems.
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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