ZrI4

zirconium tetraiodide · zirconium(IV) iodide

Zirconium tetraiodide is a stable semiconducting compound widely used in the purification and chemical vapor transport of zirconium metal.

IZr
Crystal structure of ZrI4
Ground-state structure · Materials Project
Overview

About zirconium tetraiodide

Zirconium tetraiodide is a thermodynamically stable halide compound that exhibits semiconducting electronic properties. As a member of the zirconium halide family, it serves as a critical intermediate in chemical processes where high-purity metal is required, leveraging its ability to undergo reversible decomposition at elevated temperatures.

Its structural versatility is highlighted by a significant number of reported crystal phases across multiple databases. This complexity makes it a subject of interest for researchers studying halogen-based transport mechanisms and the fundamental coordination chemistry of transition metal iodides.

At a glance

Key Properties

Cross-validated computational properties for zirconium tetraiodide, aggregated across 3 databases.

Band Gap

2.02–2.08 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

28
3 databases, 11 space groups
Uses

Applications

Where zirconium tetraiodide is used.

Chemical vapor transportRefining of high-purity zirconium metalPrecursor for zirconium-based chemical synthesis
Reference

Frequently Asked Questions

Common questions about zirconium tetraiodide, answered from cross-validated data.

What is ZrI4?

Zirconium tetraiodide is a stable semiconducting compound widely used in the purification and chemical vapor transport of zirconium metal.

More questions
What is ZrI4 used for?
zirconium tetraiodide (ZrI4) is used in chemical vapor transport, refining of high-purity zirconium metal, and precursor for zirconium-based chemical synthesis.
What is the band gap of ZrI4?
zirconium tetraiodide (ZrI4) has a DFT-computed band gap of 2.02–2.08 eV across 28 reported structures.
Is ZrI4 a metal, semiconductor, or insulator?
With a band gap up to 2.08 eV it is a semiconductor.
Is ZrI4 thermodynamically stable?
Yes — zirconium tetraiodide (ZrI4) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of ZrI4 are known?
28 structures of ZrI4 are reported across 3 databases, spanning 11 distinct space groups.
What elements does ZrI4 contain?
zirconium tetraiodide (ZrI4) contains I and Zr (2 elements).
Where does the data for ZrI4 come from?
ZrI4 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a standalone representative of the zirconium halide class, this compound is primarily valued for its role in the iodide process, where its distinct thermodynamic profile allows for the efficient purification of zirconium metal through vapor phase transport.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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