As8In4O32Pb4
As8In4O32Pb4 is a metastable, semimetallic oxide compound consisting of arsenic, indium, oxygen, and lead.
About As8In4O32Pb4
As8In4O32Pb4 is a complex inorganic oxide composed of arsenic, indium, oxygen, and lead. This compound exhibits a near-zero-gap electronic character, placing it in the semimetallic regime, which is a significant feature for materials that bridge the gap between insulating oxides and conductive phases.
As a metastable phase, this material represents a unique structural arrangement within its elemental system. Its existence is documented across a limited number of structural databases, highlighting its status as a specialized subject of study in solid-state chemistry and materials science research.
Key Properties
Cross-validated computational properties for As8In4O32Pb4, 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 As8In4O32Pb4, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 0.05 | 0.0525 | -6.279 | 5.71 |
| No. 0 | unknown | — | — | — | 1.48 |
| — | — | — | — | — | 5.08 |
Frequently Asked Questions
Common questions about As8In4O32Pb4, answered from cross-validated data.
What is As8In4O32Pb4?
As8In4O32Pb4 is a metastable, semimetallic oxide compound consisting of arsenic, indium, oxygen, and lead.
What is the band gap of As8In4O32Pb4?
Is As8In4O32Pb4 a metal, semiconductor, or insulator?
Is As8In4O32Pb4 thermodynamically stable?
What is the crystal structure of As8In4O32Pb4?
What is the density of As8In4O32Pb4?
How many polymorphs of As8In4O32Pb4 are known?
What elements does As8In4O32Pb4 contain?
Where does the data for As8In4O32Pb4 come from?
How It Compares
As a singular entry within its specific chemical system, this compound serves as a distinct reference point for understanding the interplay between heavy metal cations and arsenic-oxygen frameworks in semimetallic oxide architectures.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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