C2Hg2
C2Hg2 is a metastable, metallic mercury-carbon compound known for its diverse structural manifestations in research databases.
About C2Hg2
C2Hg2 is a mercury-carbon compound characterized by its metallic electronic nature. Its composition suggests complex bonding interactions between the heavy metal mercury and carbon, placing it in a unique category of metallic carbides.
Due to its position above the thermodynamic hull, this compound is considered metastable. Despite its inherent instability, it remains a subject of significant interest in materials science, as evidenced by the high volume of structural data reported across multiple databases.
Key Properties
Cross-validated computational properties for C2Hg2, 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.
Frequently Asked Questions
Common questions about C2Hg2, answered from cross-validated data.
What is C2Hg2?
C2Hg2 is a metastable, metallic mercury-carbon compound known for its diverse structural manifestations in research databases.
What is the band gap of C2Hg2?
Is C2Hg2 a metal, semiconductor, or insulator?
Is C2Hg2 thermodynamically stable?
How many polymorphs of C2Hg2 are known?
What elements does C2Hg2 contain?
Where does the data for C2Hg2 come from?
How It Compares
As a unique metallic mercury-carbon system, C2Hg2 stands apart as a specialized material within the broader landscape of metal carbides, representing a distinct structural configuration that deviates from more common, stable ceramic-like carbides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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