C2Mg2O6
magnesium oxalate · MgC2O4
Magnesium oxalate is a stable, insulating chemical compound widely used as a precursor for producing magnesium-based materials and oxides.
About magnesium oxalate
Magnesium oxalate is a thermodynamically stable inorganic compound that exhibits wide-band-gap insulating behavior. Its structural integrity and chemical composition make it a significant subject of study, with numerous reported structures across various databases reflecting its versatility in solid-state chemistry.
This compound is frequently utilized as a precursor for the synthesis of high-purity magnesium oxide and other functional magnesium-based materials. Its ability to undergo controlled thermal decomposition allows researchers to precisely tailor the morphology and surface characteristics of the resulting oxides for diverse industrial applications.
Key Properties
Cross-validated computational properties for magnesium oxalate, aggregated across 5 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 C2Mg2O6, 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-3c (No. 167) | trigonal | 4.96 | 0.0000 | -7.583 | 3.03 |
| P21/c (No. 14) | monoclinic | 0.52 | 0.1561 | -7.321 | 1.82 |
| C2/m (No. 12) | monoclinic | 4.80 | 0.3146 | -7.268 | 3.07 |
| C2221 (No. 20) | orthorhombic | 5.44 | 0.3781 | -7.205 | 3.08 |
| C2/c (No. 15) | monoclinic | 0.25 | 0.8007 | -6.677 | 2.17 |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.48 |
| R-3c (No. 167) | — | — | — | — | — |
| R-3c (No. 167) | — | — | — | — | — |
Applications
Where magnesium oxalate is used.
Frequently Asked Questions
Common questions about magnesium oxalate, answered from cross-validated data.
What is C2Mg2O6?
Magnesium oxalate is a stable, insulating chemical compound widely used as a precursor for producing magnesium-based materials and oxides.
What is C2Mg2O6 used for?
What is the band gap of C2Mg2O6?
Is C2Mg2O6 a metal, semiconductor, or insulator?
Is C2Mg2O6 thermodynamically stable?
What is the crystal structure of C2Mg2O6?
What is the density of C2Mg2O6?
How many polymorphs of C2Mg2O6 are known?
What elements does C2Mg2O6 contain?
Where does the data for C2Mg2O6 come from?
How It Compares
As a stable magnesium-based salt, this compound serves as a fundamental reference point within its chemical class, providing a reliable baseline for the synthesis of advanced ceramic precursors and catalytic materials.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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