K4O32P8W4
K4O32P8W4 is a thermodynamically stable, wide-gap insulating inorganic compound composed of potassium, oxygen, phosphorus, and tungsten.
About K4O32P8W4
K4O32P8W4 is a complex inorganic compound characterized by its insulating electronic nature and high thermodynamic stability. As a material located on the convex hull, it represents a robust phase that maintains structural integrity under standard conditions. Its composition, involving potassium, oxygen, phosphorus, and tungsten, suggests a highly ordered framework typical of polyoxometalate-related or phosphate-based lattice structures.
This material is of significant interest in solid-state chemistry due to its well-defined structural characteristics, supported by multiple reported entries across scientific databases. Its wide-gap insulating behavior makes it a candidate for specialized dielectric or catalytic applications where electronic isolation and thermal stability are critical requirements for performance.
Key Properties
Cross-validated computational properties for K4O32P8W4, 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 K4O32P8W4, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 3.52 | 0.0000 | -7.931 | 3.74 |
| No. 0 | unknown | — | — | — | 1.00 |
| P21/c (No. 14) | — | — | — | — | — |
| — | — | — | — | — | 3.74 |
Applications
Where K4O32P8W4 is used.
Frequently Asked Questions
Common questions about K4O32P8W4, answered from cross-validated data.
What is K4O32P8W4?
K4O32P8W4 is a thermodynamically stable, wide-gap insulating inorganic compound composed of potassium, oxygen, phosphorus, and tungsten.
What is K4O32P8W4 used for?
What is the band gap of K4O32P8W4?
Is K4O32P8W4 a metal, semiconductor, or insulator?
Is K4O32P8W4 thermodynamically stable?
What is the crystal structure of K4O32P8W4?
What is the density of K4O32P8W4?
How many polymorphs of K4O32P8W4 are known?
What elements does K4O32P8W4 contain?
Where does the data for K4O32P8W4 come from?
How It Compares
As a distinct inorganic phase, K4O32P8W4 occupies a unique position within its chemical family, serving as a stable benchmark for complex potassium-tungsten-phosphate frameworks. Unlike more transient phases that may require specific synthesis conditions to stabilize, this compound demonstrates inherent thermodynamic favorability, making it a reliable subject for fundamental studies in structural inorganic chemistry.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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