BOs
BOs is a thermodynamically stable, metallic binary compound known for its extensive structural documentation.
About BOs
BOs is a distinct inorganic compound characterized by its metallic electronic nature. As a material that resides on the convex hull, it exhibits exceptional thermodynamic stability, making it a robust candidate for fundamental studies in solid-state chemistry.
With a significant number of reported structures across major databases, this compound is a well-documented entity. Its metallic behavior suggests potential for applications where electrical conductivity and structural integrity are simultaneously required.
Key Properties
Cross-validated computational properties for BOs, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of BOs. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for BOs, 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-6m2 (No. 187) | hexagonal | 0.00 | 0.0000 | -30.438 | 16.11 |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.0000 | -0.208 | — |
| — | — | 0.00 | 0.0000 | -0.237 | — |
| — | — | 0.00 | 0.0005 | -0.236 | — |
| P-1 (No. 2) | triclinic | 0.00 | 0.4061 | -30.032 | 14.88 |
| — | — | 0.00 | 0.5201 | 0.283 | — |
| — | — | 0.00 | 0.5348 | 0.298 | — |
| — | — | 0.00 | 0.6044 | 0.368 | — |
| — | — | 0.00 | 0.7250 | 0.488 | — |
| — | — | 0.00 | 0.9741 | 0.737 | — |
| P1 (No. 1) | triclinic | — | — | — | 13.37 |
| P1 (No. 1) | triclinic | — | — | — | 11.53 |
Applications
Where BOs is used.
Frequently Asked Questions
Common questions about BOs, answered from cross-validated data.
What is BOs?
BOs is a thermodynamically stable, metallic binary compound known for its extensive structural documentation.
What is BOs used for?
What is the band gap of BOs?
Is BOs a metal, semiconductor, or insulator?
Is BOs thermodynamically stable?
What is the crystal structure of BOs?
What is the density of BOs?
How many polymorphs of BOs are known?
What elements does BOs contain?
Where does the data for BOs come from?
How It Compares
As a unique metallic compound, BOs occupies a specialized niche in materials science. Unlike many insulating or semiconducting binary systems, its inherent stability and metallic character distinguish it as a focal point for researchers investigating the interplay between boron and osmium bonding environments.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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