C8Hg8N8O4
C8Hg8N8O4 is a complex, wide-gap insulating compound composed of mercury, carbon, nitrogen, and oxygen that is currently under investigation for its structural characteristics.
About C8Hg8N8O4
C8Hg8N8O4 is a complex organic-inorganic hybrid material characterized by its wide-gap insulating electronic nature. Due to its unique composition of carbon, mercury, nitrogen, and oxygen, it represents a specialized structural arrangement that is currently being studied for its fundamental chemical properties.
As a material that resides above the thermodynamic hull, it is considered metastable, making it a subject of interest for researchers investigating synthetic pathways and structural stability. Its existence across multiple databases highlights its role in ongoing efforts to map the landscape of complex mercury-containing frameworks.
Key Properties
Cross-validated computational properties for C8Hg8N8O4, 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 C8Hg8N8O4, 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. |
|---|---|---|---|---|---|
| Pnma (No. 62) | orthorhombic | 3.15 | 0.4912 | -5.703 | 5.39 |
| Pnma (No. 62) | — | — | — | — | — |
| — | — | — | — | — | 4.42 |
| Pnma (No. 62) | — | — | — | — | — |
Frequently Asked Questions
Common questions about C8Hg8N8O4, answered from cross-validated data.
What is C8Hg8N8O4?
C8Hg8N8O4 is a complex, wide-gap insulating compound composed of mercury, carbon, nitrogen, and oxygen that is currently under investigation for its structural characteristics.
What is the band gap of C8Hg8N8O4?
Is C8Hg8N8O4 a metal, semiconductor, or insulator?
Is C8Hg8N8O4 thermodynamically stable?
What is the crystal structure of C8Hg8N8O4?
What is the density of C8Hg8N8O4?
How many polymorphs of C8Hg8N8O4 are known?
What elements does C8Hg8N8O4 contain?
Where does the data for C8Hg8N8O4 come from?
How It Compares
As a unique entry in the current database, C8Hg8N8O4 serves as an important reference point for understanding the stability limits of mercury-based organic-inorganic frameworks, providing researchers with a distinct structural case study for evaluating high-complexity insulating 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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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