Ag4B28O48Sr4
Ag4B28O48Sr4 is a thermodynamically stable, wide-gap insulating borate compound containing silver and strontium.
About Ag4B28O48Sr4
Ag4B28O48Sr4 is a complex borate compound characterized by its wide-gap insulating electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement of silver, strontium, boron, and oxygen atoms.
This material is of interest to researchers investigating stable oxide frameworks with insulating properties. Its existence across multiple structural databases underscores its significance as a well-defined crystalline compound within the broader landscape of inorganic borate chemistry.
Key Properties
Cross-validated computational properties for Ag4B28O48Sr4, 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 Ag4B28O48Sr4, 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/c (No. 15) | monoclinic | 3.00 | 0.0000 | -8.046 | 3.50 |
| C2/c (No. 15) | — | — | — | — | — |
| — | — | — | — | — | 3.50 |
Applications
Where Ag4B28O48Sr4 is used.
Frequently Asked Questions
Common questions about Ag4B28O48Sr4, answered from cross-validated data.
What is Ag4B28O48Sr4?
Ag4B28O48Sr4 is a thermodynamically stable, wide-gap insulating borate compound containing silver and strontium.
What is Ag4B28O48Sr4 used for?
What is the band gap of Ag4B28O48Sr4?
Is Ag4B28O48Sr4 a metal, semiconductor, or insulator?
Is Ag4B28O48Sr4 thermodynamically stable?
What is the crystal structure of Ag4B28O48Sr4?
What is the density of Ag4B28O48Sr4?
How many polymorphs of Ag4B28O48Sr4 are known?
What elements does Ag4B28O48Sr4 contain?
Where does the data for Ag4B28O48Sr4 come from?
How It Compares
As a unique crystalline borate, this compound serves as a distinct example of how silver and strontium can be integrated into a stable oxide framework. Without direct structural siblings in this specific chemical space, it stands as a reference point for understanding the stability and electronic behavior of complex quaternary borates.
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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