AgAsO3
Silver metarsenite · Silver arsenite
Silver metarsenite is an inorganic compound composed of silver, arsenic, and oxygen. It is primarily studied for its structural properties in solid-state chemistry and historically served as a pigment or chemical reagent.
AgAsO
Overview
Key Properties
Cross-validated computational properties for Silver metarsenite, 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.
0.29–0.74 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
11
3 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for AgAsO3, 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. |
|---|---|---|---|---|---|
| R-3 (No. 148) | trigonal | 0.29 | 0.0000 | -5.741 | 6.43 |
| Pca21 (No. 29) | orthorhombic | 0.59 | 0.0258 | -5.715 | 5.32 |
| C2/c (No. 15) | monoclinic | 0.74 | 0.0373 | -5.704 | 5.03 |
| R-3 (No. 148) | — | — | — | — | — |
| C2/c (No. 15) | — | — | — | — | — |
| C2/c (No. 15) | Monoclinic | — | — | — | 5.03 |
| C2/c (No. 15) | Monoclinic | — | — | — | 5.20 |
| R-3 (No. 148) | Trigonal | — | — | — | 6.13 |
| C2/c (No. 15) | Monoclinic | — | — | — | 5.47 |
| R-3 (No. 148) | Trigonal | — | — | — | 6.72 |
| R-3 (No. 148) | Trigonal | — | — | — | 6.40 |
Uses
Applications
Where Silver metarsenite is used.
Chemical researchHistorical pigment applications
Reference
Frequently Asked Questions
Common questions about Silver metarsenite, answered from cross-validated data.
What is AgAsO3?
Silver metarsenite is an inorganic compound composed of silver, arsenic, and oxygen. It is primarily studied for its structural properties in solid-state chemistry and historically served as a pigment or chemical reagent.
More questions
What is AgAsO3 used for?
Silver metarsenite (AgAsO3) is used in chemical research and historical pigment applications.
What is the band gap of AgAsO3?
Silver metarsenite (AgAsO3) has a DFT-computed band gap of 0.29–0.74 eV across 11 reported structures.
Is AgAsO3 a metal, semiconductor, or insulator?
With a band gap up to 0.74 eV it is a semiconductor.
Is AgAsO3 thermodynamically stable?
Yes — Silver metarsenite (AgAsO3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of AgAsO3?
The lowest-energy reported polymorph of Silver metarsenite (AgAsO3) is trigonal symmetry, space group R-3 (No. 148).
What is the density of AgAsO3?
The computed density of the ground-state structure of Silver metarsenite (AgAsO3) is 6.43 g/cm³.
How many polymorphs of AgAsO3 are known?
11 structures of AgAsO3 are reported across 3 databases, spanning 3 distinct space groups.
What elements does AgAsO3 contain?
Silver metarsenite (AgAsO3) contains Ag, As, and O (3 elements).
Where does the data for AgAsO3 come from?
AgAsO3 data is cross-referenced from materials_project, jarvis, mpaloe.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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