Mg2Pb4
Mg2Pb4 is a metallic intermetallic compound that exhibits high structural complexity and is considered a viable candidate for experimental synthesis.
About Mg2Pb4
Mg2Pb4 is a metallic intermetallic compound characterized by its complex structural arrangements. Given its position near the thermodynamic hull, it is considered a promising candidate for experimental synthesis and further characterization in solid-state chemistry research.
The material exhibits significant structural variety, as evidenced by the large number of reported configurations across multiple databases. This versatility suggests that Mg2Pb4 may offer unique electronic or physical properties that warrant deeper investigation for specialized technological applications.
Key Properties
Cross-validated computational properties for Mg2Pb4, aggregated across 4 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 Mg2Pb4, 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. |
|---|---|---|---|---|---|
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0201 | -3.017 | 8.61 |
| Pnma (No. 62) | orthorhombic | 0.00 | 0.0322 | -3.005 | 8.74 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0330 | -3.004 | 8.43 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0342 | -38.963 | 8.58 |
| C2/m (No. 12) | monoclinic | 0.00 | 0.0343 | -3.002 | 8.69 |
| P-6m2 (No. 187) | hexagonal | 0.00 | 0.0366 | -3.000 | 8.71 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0465 | -38.951 | 8.71 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.0489 | -2.988 | 8.35 |
| I4/mmm (No. 139) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Fd-3m (No. 227) | — | — | — | — | — |
| I41/amd (No. 141) | — | — | — | — | — |
Applications
Where Mg2Pb4 is used.
Frequently Asked Questions
Common questions about Mg2Pb4, answered from cross-validated data.
What is Mg2Pb4?
Mg2Pb4 is a metallic intermetallic compound that exhibits high structural complexity and is considered a viable candidate for experimental synthesis.
What is Mg2Pb4 used for?
What is the band gap of Mg2Pb4?
Is Mg2Pb4 a metal, semiconductor, or insulator?
Is Mg2Pb4 thermodynamically stable?
What is the crystal structure of Mg2Pb4?
What is the density of Mg2Pb4?
How many polymorphs of Mg2Pb4 are known?
What elements does Mg2Pb4 contain?
Where does the data for Mg2Pb4 come from?
How It Compares
As a unique intermetallic phase, Mg2Pb4 represents a distinct structural arrangement within the magnesium-lead system. Unlike simpler binary phases, its existence across numerous reported structures highlights its role as a complex, potentially synthesizable material that bridges the gap between basic alloy systems and more intricate intermetallic compounds.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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