ICl

Iodine monochloride · Wijs' solution

Iodine monochloride is a stable interhalogen compound widely utilized as a chemical reagent for iodination in organic synthesis.

ClI
Crystal structure of ICl
Ground-state structure · Materials Project
Overview

About Iodine monochloride

Iodine monochloride is a semiconducting interhalogen compound that exists as a thermodynamically stable phase. Its unique chemical reactivity makes it a valuable reagent for introducing iodine into organic molecules, playing a critical role in various synthetic pathways.

Due to its high reactivity and well-defined structural properties, this compound is extensively documented in chemical databases. Its stability and predictable electronic behavior allow it to serve as a reliable tool for laboratory-scale halogenation reactions.

At a glance

Key Properties

Cross-validated computational properties for Iodine monochloride, aggregated across 4 databases.

Band Gap

1.18–1.85 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

104
4 databases, 18 space groups
Uses

Applications

Where Iodine monochloride is used.

Organic synthesisIodinating agentAnalytical chemistryWijs' solution for iodine value determination
Reference

Frequently Asked Questions

Common questions about Iodine monochloride, answered from cross-validated data.

What is ICl?

Iodine monochloride is a stable interhalogen compound widely utilized as a chemical reagent for iodination in organic synthesis.

More questions
What is ICl used for?
Iodine monochloride (ICl) is used in organic synthesis, iodinating agent, analytical chemistry, and wijs' solution for iodine value determination.
What is the band gap of ICl?
Iodine monochloride (ICl) has a DFT-computed band gap of 1.18–1.85 eV across 104 reported structures.
Is ICl a metal, semiconductor, or insulator?
With a band gap up to 1.85 eV it is a semiconductor.
Is ICl thermodynamically stable?
Yes — Iodine monochloride (ICl) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of ICl are known?
104 structures of ICl are reported across 4 databases, spanning 18 distinct space groups.
What elements does ICl contain?
Iodine monochloride (ICl) contains Cl and I (2 elements).
Where does the data for ICl come from?
ICl data is cross-referenced from latticegraph.
Comparison

How It Compares

As a prominent interhalogen compound, iodine monochloride serves as a foundational example of how halogen-halogen bonding influences chemical reactivity and stability within this class of materials.

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

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