Li1Pt2Sb1
Li1Pt2Sb1 is a semiconducting ternary alloy containing lithium, platinum, and antimony that is investigated for its potential catalytic properties.

About Li1Pt2Sb1
Li1Pt2Sb1 is a complex ternary compound categorized within the platinum-group alloy catalysts. Characterized by its semiconducting electronic nature, this material represents a unique intersection of alkali metal reactivity and noble metal stability, offering a distinct electronic profile for catalytic research.
Despite its existence in a significant number of reported structural configurations, the compound is noted for its thermodynamic position above the hull. This suggests that while it can be synthesized, it remains a metastable phase that provides valuable insights into the formation and stability limits of platinum-based intermetallic systems.
Key Properties
Cross-validated computational properties for Li1Pt2Sb1, aggregated across 2 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 Li1Pt2Sb1, 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 | 0.55 | 2.0890 | -31.280 | 1.01 |
| Pmm2 (No. 25) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| I4/mmm (No. 139) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
Applications
Where Li1Pt2Sb1 is used.
Frequently Asked Questions
Common questions about Li1Pt2Sb1, answered from cross-validated data.
What is Li1Pt2Sb1?
Li1Pt2Sb1 is a semiconducting ternary alloy containing lithium, platinum, and antimony that is investigated for its potential catalytic properties.
What is Li1Pt2Sb1 used for?
What is the band gap of Li1Pt2Sb1?
Is Li1Pt2Sb1 a metal, semiconductor, or insulator?
Is Li1Pt2Sb1 thermodynamically stable?
What is the crystal structure of Li1Pt2Sb1?
What is the density of Li1Pt2Sb1?
How many polymorphs of Li1Pt2Sb1 are known?
What elements does Li1Pt2Sb1 contain?
Where does the data for Li1Pt2Sb1 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Within the diverse class of platinum-group alloys, Li1Pt2Sb1 occupies a specialized niche compared to more thermodynamically robust members like As2Pt or GeRu. While many of its siblings exhibit metallic conductivity and high stability, Li1Pt2Sb1 serves as a semiconducting outlier, highlighting the influence of lithium incorporation on the electronic and structural behavior of platinum-antimony frameworks.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
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).
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