HCNO
fulminic acid · hydrogen fulminate
Fulminic acid is a thermodynamically stable, insulating molecular compound composed of hydrogen, carbon, nitrogen, and oxygen.
About fulminic acid
Fulminic acid is a distinct chemical species composed of hydrogen, carbon, nitrogen, and oxygen. It is characterized by its wide-gap insulating electronic nature and maintains thermodynamic stability, positioning it as a significant subject within structural chemistry studies.
Its structural diversity is highlighted by numerous reported configurations across multiple databases. This compound serves as a critical reference point for understanding the bonding arrangements and stability profiles of small, highly reactive organic-inorganic hybrid molecules.
Key Properties
Cross-validated computational properties for fulminic acid, 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.
Applications
Where fulminic acid is used.
Frequently Asked Questions
Common questions about fulminic acid, answered from cross-validated data.
What is HCNO?
Fulminic acid is a thermodynamically stable, insulating molecular compound composed of hydrogen, carbon, nitrogen, and oxygen.
What is HCNO used for?
What is the band gap of HCNO?
Is HCNO a metal, semiconductor, or insulator?
Is HCNO thermodynamically stable?
How many polymorphs of HCNO are known?
What elements does HCNO contain?
Where does the data for HCNO come from?
How It Compares
As a unique chemical entity, fulminic acid occupies a specialized niche in structural chemistry. It serves as a fundamental example of molecular stability and electronic insulation, providing a baseline for investigating the behavior of similar small-molecule isomers and their respective energy landscapes.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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