Cr2Ge2O6
Cr2Ge2O6 is a semiconducting oxide material that exists as a metastable phase within the broader family of spinel-related catalytic compounds.
About Cr2Ge2O6
Cr2Ge2O6 is a complex oxide belonging to the spinel-related class of materials. As a semiconducting compound, it possesses electronic properties that are of interest for specialized catalytic research and potential solid-state applications. Its structural complexity is highlighted by multiple reported configurations within crystallographic databases.
Despite its interesting electronic profile, the compound is characterized as being thermodynamically above the hull, suggesting it is a metastable phase. This metastability often makes it a subject of interest for synthesis studies aimed at stabilizing specific oxide architectures for advanced chemical processing.
Key Properties
Cross-validated computational properties for Cr2Ge2O6, 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 Cr2Ge2O6, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 0.70 | 0.1477 | -7.371 | 4.46 |
| C2/c (No. 15) | monoclinic | 0.67 | 0.1554 | -7.363 | 4.52 |
| P21/c (No. 14) | monoclinic | 0.79 | 0.1627 | -7.356 | 4.34 |
| Pm-3m (No. 221) | cubic | 0.00 | 0.6066 | -7.371 | 5.46 |
| Fmmm (No. 69) | — | — | — | — | — |
| R3c (No. 161) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3 (No. 148) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R3c (No. 161) | — | — | — | — | — |
| R3c (No. 161) | — | — | — | — | — |
| R-3 (No. 148) | — | — | — | — | — |
Applications
Where Cr2Ge2O6 is used.
Frequently Asked Questions
Common questions about Cr2Ge2O6, answered from cross-validated data.
What is Cr2Ge2O6?
Cr2Ge2O6 is a semiconducting oxide material that exists as a metastable phase within the broader family of spinel-related catalytic compounds.
What is Cr2Ge2O6 used for?
What is the band gap of Cr2Ge2O6?
Is Cr2Ge2O6 a metal, semiconductor, or insulator?
Is Cr2Ge2O6 thermodynamically stable?
What is the crystal structure of Cr2Ge2O6?
What is the density of Cr2Ge2O6?
How many polymorphs of Cr2Ge2O6 are known?
What elements does Cr2Ge2O6 contain?
Where does the data for Cr2Ge2O6 come from?
How It Compares
Within the spinel oxide catalysts class.
Within the broader family of spinel oxide catalysts and related oxides, Cr2Ge2O6 occupies a distinct niche compared to more common, highly stable oxides like MgAl2O4 or simple binary oxides such as ZnO and NiO. While materials like LaMnO3 or LaNiO3 are frequently utilized for their robust perovskite-based catalytic activity, Cr2Ge2O6 represents a more exotic, less conventional composition that challenges standard synthesis pathways due to its relative thermodynamic instability.
Related Compounds
Other Spinel Oxide 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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