Ag2Hg2O8V2
Ag2Hg2O8V2 is a metastable semiconducting inorganic compound composed of silver, mercury, oxygen, and vanadium.
About Ag2Hg2O8V2
Ag2Hg2O8V2 is a complex inorganic compound containing silver, mercury, oxygen, and vanadium. As a metastable material, it represents a unique structural arrangement that offers distinct pathways for solid-state research and synthesis exploration. Its electronic character as a semiconductor suggests potential utility in specialized optoelectronic or sensing applications where specific charge transport properties are required. The existence of multiple reported structures highlights its structural versatility and the ongoing interest in characterizing its phase behavior. This compound serves as an intriguing subject for those investigating the interplay between heavy metal cations and oxyanion frameworks in complex oxides.
Key Properties
Cross-validated computational properties for Ag2Hg2O8V2, 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 Ag2Hg2O8V2, 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. |
|---|---|---|---|---|---|
| C2 (No. 5) | monoclinic | 1.22 | 0.0296 | -5.981 | 6.64 |
| — | — | — | — | — | 6.64 |
| — | — | — | — | — | 5.75 |
| C2 (No. 5) | — | — | — | — | — |
Applications
Where Ag2Hg2O8V2 is used.
Frequently Asked Questions
Common questions about Ag2Hg2O8V2, answered from cross-validated data.
What is Ag2Hg2O8V2?
Ag2Hg2O8V2 is a metastable semiconducting inorganic compound composed of silver, mercury, oxygen, and vanadium.
What is Ag2Hg2O8V2 used for?
What is the band gap of Ag2Hg2O8V2?
Is Ag2Hg2O8V2 a metal, semiconductor, or insulator?
Is Ag2Hg2O8V2 thermodynamically stable?
What is the crystal structure of Ag2Hg2O8V2?
What is the density of Ag2Hg2O8V2?
How many polymorphs of Ag2Hg2O8V2 are known?
What elements does Ag2Hg2O8V2 contain?
Where does the data for Ag2Hg2O8V2 come from?
How It Compares
As a unique quaternary oxide, Ag2Hg2O8V2 occupies a specialized niche within inorganic chemistry. Unlike more common binary or ternary oxides, this compound demonstrates the structural complexity possible when integrating multiple transition metals and mercury into a single lattice, providing a distinct case study for researchers exploring metastable phases in multi-component systems.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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