MnOs2Si
MnOs2Si is a semiconducting ternary compound containing manganese, osmium, and silicon that exhibits metastable structural characteristics.
About MnOs2Si
MnOs2Si is a complex ternary compound composed of manganese, osmium, and silicon. As a semiconducting material, it occupies a unique niche in solid-state chemistry, characterized by a structural landscape that has been documented across multiple independent databases.
Due to its position relative to the thermodynamic ground state, this compound is considered metastable. Its existence across various reported structures highlights the intricate bonding environments created by the interplay between the transition metals and the silicon framework.
Key Properties
Cross-validated computational properties for MnOs2Si, 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 MnOs2Si, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.19 | 3.8227 | -28.839 | 1.14 |
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Frequently Asked Questions
Common questions about MnOs2Si, answered from cross-validated data.
What is MnOs2Si?
MnOs2Si is a semiconducting ternary compound containing manganese, osmium, and silicon that exhibits metastable structural characteristics.
What is the band gap of MnOs2Si?
Is MnOs2Si a metal, semiconductor, or insulator?
Is MnOs2Si thermodynamically stable?
What is the crystal structure of MnOs2Si?
What is the density of MnOs2Si?
How many polymorphs of MnOs2Si are known?
What elements does MnOs2Si contain?
Where does the data for MnOs2Si come from?
How It Compares
As a specialized ternary silicide, MnOs2Si represents a distinct structural arrangement that does not fall into a standard classification group. It serves as an example of the diverse, often metastable, phases that can emerge in heavy-metal-containing silicon systems, providing researchers with insights into the limits of structural stability for complex transition metal alloys.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- alexandria — Data from alexandria.
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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