HgCN2
HgCN2 is a semiconducting mercury-carbon-nitrogen compound that exists in a metastable state.
About HgCN2
HgCN2 is a semiconducting compound composed of mercury, carbon, and nitrogen. It represents a complex chemical system that has been documented across multiple structural databases, reflecting significant interest in its potential electronic properties.
As a material that sits above the thermodynamic hull, it is considered metastable. Its existence in various structural configurations highlights the intricate bonding behaviors possible within mercury-cyanide-related frameworks, making it a subject of study for those investigating unstable inorganic phases.
Key Properties
Cross-validated computational properties for HgCN2, 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.
Frequently Asked Questions
Common questions about HgCN2, answered from cross-validated data.
What is HgCN2?
HgCN2 is a semiconducting mercury-carbon-nitrogen compound that exists in a metastable state.
What is the band gap of HgCN2?
Is HgCN2 a metal, semiconductor, or insulator?
Is HgCN2 thermodynamically stable?
How many polymorphs of HgCN2 are known?
What elements does HgCN2 contain?
Where does the data for HgCN2 come from?
How It Compares
As a unique inorganic phase with no direct structural siblings currently classified alongside it, HgCN2 stands as a distinct, albeit metastable, entry in the landscape of mercury-based semiconductors.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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