K2O8Tc2
K2O8Tc2 is a thermodynamically stable, wide-band-gap insulating oxide containing potassium and technetium.
About K2O8Tc2
K2O8Tc2 is a complex oxide featuring potassium and technetium. As a wide-band-gap insulator, it exhibits distinct electronic characteristics that differentiate it from metallic or semi-conducting technetium-based materials. Its thermodynamic stability on the convex hull suggests a robust structural configuration that is favorable under standard conditions.
This compound is of interest to researchers investigating the fundamental behavior of technetium oxides in solid-state chemistry. Its status as a stable phase makes it a significant subject for structural analysis and potential specialized applications where insulating properties are required.
Key Properties
Cross-validated computational properties for K2O8Tc2, 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 K2O8Tc2, 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. |
|---|---|---|---|---|---|
| I41/a (No. 88) | tetragonal | 3.19 | 0.0000 | -7.368 | 3.34 |
| I41/a (No. 88) | tetragonal | — | — | — | 1.60 |
| I41/a (No. 88) | — | — | — | — | — |
| I41/a (No. 88) | — | — | — | — | — |
Frequently Asked Questions
Common questions about K2O8Tc2, answered from cross-validated data.
What is K2O8Tc2?
K2O8Tc2 is a thermodynamically stable, wide-band-gap insulating oxide containing potassium and technetium.
What is the band gap of K2O8Tc2?
Is K2O8Tc2 a metal, semiconductor, or insulator?
Is K2O8Tc2 thermodynamically stable?
What is the crystal structure of K2O8Tc2?
What is the density of K2O8Tc2?
How many polymorphs of K2O8Tc2 are known?
What elements does K2O8Tc2 contain?
Where does the data for K2O8Tc2 come from?
How It Compares
As a unique oxide phase, K2O8Tc2 represents a distinct structural arrangement within the broader field of technetium-containing compounds, serving as a stable reference point for future investigations into complex oxide insulators.
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).
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