K2Pt4S6
K2Pt4S6 is a stable, semiconducting potassium platinum sulfide used in solid-state materials research.
About K2Pt4S6
K2Pt4S6 is a ternary sulfide compound composed of potassium, platinum, and sulfur. As a thermodynamically stable material located on the convex hull, it represents a well-defined structural phase within its chemical system.
Exhibiting semiconducting electronic character, this compound is of interest for its unique coordination environment and potential for tunable electronic properties. Its existence across multiple reported structures highlights its significance in solid-state chemistry research.
Key Properties
Cross-validated computational properties for K2Pt4S6, 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 K2Pt4S6, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 1.27 | 0.0000 | -22.985 | 6.25 |
| — | — | — | — | — | 6.08 |
| R-3m (No. 166) | — | — | — | — | — |
Applications
Where K2Pt4S6 is used.
Frequently Asked Questions
Common questions about K2Pt4S6, answered from cross-validated data.
What is K2Pt4S6?
K2Pt4S6 is a stable, semiconducting potassium platinum sulfide used in solid-state materials research.
What is K2Pt4S6 used for?
What is the band gap of K2Pt4S6?
Is K2Pt4S6 a metal, semiconductor, or insulator?
Is K2Pt4S6 thermodynamically stable?
What is the crystal structure of K2Pt4S6?
What is the density of K2Pt4S6?
How many polymorphs of K2Pt4S6 are known?
What elements does K2Pt4S6 contain?
Where does the data for K2Pt4S6 come from?
How It Compares
As a distinct ternary sulfide, K2Pt4S6 serves as a stable representative of platinum-based chalcogenides, offering a unique structural framework that differentiates it from simpler binary or more complex quaternary metal sulfides.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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