SnI4
tin(IV) iodide · stannic iodide
Tin(IV) iodide is a stable, semiconducting binary compound of tin and iodine widely used in chemical synthesis.

About tin(IV) iodide
Tin(IV) iodide is a binary inorganic compound that exists as a thermodynamically stable semiconducting material. Its position on the convex hull underscores its structural integrity, making it a reliable subject for intensive crystallographic study across multiple databases.
As a metal halide, this compound serves as a versatile reagent in synthetic chemistry and materials research. Its electronic character and stability profile allow it to function effectively in specialized chemical applications where precise control over tin and iodine coordination is required.
Key Properties
Cross-validated computational properties for tin(IV) iodide, 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 tin(IV) iodide is used.
Frequently Asked Questions
Common questions about tin(IV) iodide, answered from cross-validated data.
What is SnI4?
Tin(IV) iodide is a stable, semiconducting binary compound of tin and iodine widely used in chemical synthesis.
What is SnI4 used for?
What is the band gap of SnI4?
Is SnI4 a metal, semiconductor, or insulator?
Is SnI4 thermodynamically stable?
How many polymorphs of SnI4 are known?
What elements does SnI4 contain?
Where does the data for SnI4 come from?
How It Compares
As a standalone representative of its class in this context, tin(IV) iodide serves as a foundational example of a stable, semiconducting metal halide. Its well-documented structural diversity highlights the complex bonding environments possible within the tin-iodine system.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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