P2Os
P2Os is a thermodynamically stable semiconducting compound composed of osmium and phosphorus.
About P2Os
P2Os is a distinct binary compound formed from osmium and phosphorus. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement that maintains integrity under standard conditions.
This material exhibits semiconducting electronic properties, making it a subject of interest for researchers investigating specialized electronic or optoelectronic behaviors. With a significant number of reported structures across major databases, it is a well-documented subject for further exploration in solid-state chemistry.
Key Properties
Cross-validated computational properties for P2Os, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of P2Os. 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 P2Os, 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. |
|---|---|---|---|---|---|
| — | — | 0.99 | 0.0000 | -0.689 | — |
| Pnnm (No. 58) | orthorhombic | 0.81 | 0.0000 | -24.270 | 9.45 |
| Pnnm (No. 58) | orthorhombic | 0.80 | 0.0000 | -0.519 | — |
| — | — | 0.00 | 0.4798 | -0.209 | — |
| — | — | 0.00 | 0.8669 | 0.178 | — |
| — | — | 0.00 | 1.6622 | 0.973 | — |
| P1 (No. 1) | triclinic | — | — | — | 6.86 |
| P1 (No. 1) | triclinic | — | — | — | 8.58 |
| P1 (No. 1) | triclinic | — | — | — | 9.11 |
| P1 (No. 1) | triclinic | — | — | — | 6.50 |
| P1 (No. 1) | triclinic | — | — | — | 7.75 |
| P1 (No. 1) | triclinic | — | — | — | 6.13 |
Frequently Asked Questions
Common questions about P2Os, answered from cross-validated data.
What is P2Os?
P2Os is a thermodynamically stable semiconducting compound composed of osmium and phosphorus.
What is the band gap of P2Os?
Is P2Os a metal, semiconductor, or insulator?
Is P2Os thermodynamically stable?
What is the crystal structure of P2Os?
What is the density of P2Os?
How many polymorphs of P2Os are known?
What elements does P2Os contain?
Where does the data for P2Os come from?
How It Compares
As a unique binary system, P2Os serves as a foundational example of osmium-phosphide chemistry, providing a stable reference point for understanding how heavy transition metals integrate with pnictogens to form semiconducting electronic environments.
Data sources & attribution
- 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)
- 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)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
Analyze P2Os in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 85 source databases.
Explore the Platform →