MnSn2
MnSn2 is a metallic binary intermetallic compound formed from manganese and tin that exhibits structural stability suitable for experimental synthesis.
About MnSn2
MnSn2 is a metallic intermetallic compound composed of manganese and tin. Its electronic character is defined by a lack of a band gap, placing it firmly within the category of metallic conductors rather than semiconductors or insulators.
This compound is notable for its proximity to the thermodynamic hull, suggesting that it is a viable candidate for experimental synthesis. With a significant number of reported structures across multiple databases, it serves as a subject of interest for researchers investigating the complex phase space of transition metal stannides.
Key Properties
Cross-validated computational properties for MnSn2, 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 MnSn2. 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 MnSn2, 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. |
|---|---|---|---|---|---|
| — | — | 0.00 | 0.0000 | -0.052 | — |
| — | — | 0.00 | 0.0005 | -0.051 | — |
| I4/mcm (No. 140) | tetragonal | 0.00 | 0.0097 | -21.382 | 8.17 |
| I4/mcm (No. 140) | tetragonal | 0.00 | 0.0718 | 0.072 | — |
| I4/mcm (No. 140) | tetragonal | 0.00 | 0.0720 | 0.072 | — |
| — | — | 0.00 | 0.6767 | 0.625 | — |
| — | — | 0.00 | 0.9373 | 0.886 | — |
| Cm (No. 8) | monoclinic | — | — | — | 6.88 |
| P-1 (No. 2) | triclinic | — | — | — | 4.30 |
| P-1 (No. 2) | triclinic | — | — | — | 5.60 |
| P-1 (No. 2) | triclinic | — | — | — | 7.59 |
| P-1 (No. 2) | triclinic | — | — | — | 4.04 |
Synthesis Routes
Literature-extracted synthesis procedures targeting MnSn2.
Applications
Where MnSn2 is used.
Frequently Asked Questions
Common questions about MnSn2, answered from cross-validated data.
What is MnSn2?
MnSn2 is a metallic binary intermetallic compound formed from manganese and tin that exhibits structural stability suitable for experimental synthesis.
What is MnSn2 used for?
What is the band gap of MnSn2?
Is MnSn2 a metal, semiconductor, or insulator?
Is MnSn2 thermodynamically stable?
What is the crystal structure of MnSn2?
What is the density of MnSn2?
How many polymorphs of MnSn2 are known?
How is MnSn2 synthesized?
What elements does MnSn2 contain?
Where does the data for MnSn2 come from?
How It Compares
As an intermetallic phase, MnSn2 represents a specific structural arrangement of manganese and tin atoms that occupies a distinct niche in the landscape of binary metal systems. Its status as a near-hull material makes it a representative example of stable, synthesizable intermetallics that warrant further investigation into their physical properties.
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.
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