CoH3
CoH3 is an unstable, metallic cobalt-hydrogen compound known for its extensive structural complexity.
About CoH3
CoH3 is a metallic hydride composed of cobalt and hydrogen. Due to its electronic character, it exhibits conductive properties typical of metallic systems, making it a subject of interest for researchers investigating the behavior of transition metal hydrides under extreme conditions. The compound is notable for its structural diversity, with numerous reported configurations across various databases. As a material that sits above the thermodynamic hull, it is considered inherently unstable under ambient conditions, which highlights the challenges in its synthesis and characterization. Its study is primarily driven by the fundamental physics of metal-hydrogen interactions and the search for novel phases in high-pressure chemistry.
Key Properties
Cross-validated computational properties for CoH3, 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 CoH3 is used.
Frequently Asked Questions
Common questions about CoH3, answered from cross-validated data.
What is CoH3?
CoH3 is an unstable, metallic cobalt-hydrogen compound known for its extensive structural complexity.
What is CoH3 used for?
What is the band gap of CoH3?
Is CoH3 a metal, semiconductor, or insulator?
Is CoH3 thermodynamically stable?
How many polymorphs of CoH3 are known?
What elements does CoH3 contain?
Where does the data for CoH3 come from?
How It Compares
As a member of the transition metal hydride family, CoH3 represents a complex, structurally rich system that lacks a stable ground state at standard pressure. Unlike more conventional, stable hydrides, its position above the thermodynamic hull suggests that its existence is highly dependent on specific environmental constraints, positioning it as a specialized subject for theoretical and experimental exploration rather than a standard industrial material.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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