HIr
HIr is a metallic iridium hydride compound that typically exists in an unstable state relative to its constituent elements.
About HIr
HIr is a metallic hydride compound composed of iridium and hydrogen. As a metallic system, it exhibits conductive electronic behavior, reflecting the strong interaction between the transition metal and the light element within its lattice structure.
Despite its existence in numerous reported structural configurations across databases, the compound is characterized as being above the thermodynamic hull. This indicates that it is generally considered an unstable phase under standard conditions, often requiring specific high-pressure environments to stabilize.
Key Properties
Cross-validated computational properties for HIr, 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 HIr, answered from cross-validated data.
What is HIr?
HIr is a metallic iridium hydride compound that typically exists in an unstable state relative to its constituent elements.
What is the band gap of HIr?
Is HIr a metal, semiconductor, or insulator?
Is HIr thermodynamically stable?
How many polymorphs of HIr are known?
What elements does HIr contain?
Where does the data for HIr come from?
How It Compares
As a unique metallic hydride, HIr represents a specialized case within the broader family of transition metal hydrides, where the interplay between iridium's d-orbitals and hydrogen's s-orbitals dictates its complex structural landscape.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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