WI3
Tungsten triiodide is a metastable, semiconducting binary compound consisting of tungsten and iodine atoms.
About WI3
Tungsten triiodide is a binary inorganic compound composed of tungsten and iodine. As a semiconducting material, it represents a unique intersection of transition metal chemistry and halide coordination, offering distinct electronic properties that are of interest for fundamental solid-state studies.
Because it exists in a metastable state, this compound requires specific synthesis conditions to stabilize its structure. Its presence in structural databases highlights its role as a subject of ongoing investigation into the phase stability and bonding behavior of tungsten-iodine systems.
Key Properties
Cross-validated computational properties for WI3, aggregated across 2 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 WI3 is used.
Frequently Asked Questions
Common questions about WI3, answered from cross-validated data.
What is WI3?
Tungsten triiodide is a metastable, semiconducting binary compound consisting of tungsten and iodine atoms.
What is WI3 used for?
What is the band gap of WI3?
Is WI3 a metal, semiconductor, or insulator?
Is WI3 thermodynamically stable?
How many polymorphs of WI3 are known?
What elements does WI3 contain?
Where does the data for WI3 come from?
How It Compares
As a member of the tungsten-iodine binary system, this compound serves as a critical reference point for understanding the diverse coordination geometries possible between heavy transition metals and halogens. It occupies a specialized niche in materials science where thermodynamic metastability dictates its synthesis and potential utility in experimental phase mapping.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze WI3 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →