diiodide

The first organotin compound was diethyltin diiodide, discovered by Edward Frankland in 1849.

Thus the diiodide is described as InInX.

This white crystalline powder is more soluble than the diiodide, but less than the dibromide and the dichloride.

The production of ethylenediammonium diiodide, provided as a nutritional supplement for livestock, consumes a large fraction of available iodine.

In presence of ketones, allylic derivatives lead to the coupling product when treated in Barbier's conditions with samarium diiodide.

Lead forms dihalides and tetrahalides with fluorine and chlorine, and forms a tetrabromide and a lead diiodide.

In this method indole 1 was converted to tetracycle 2 (together with by-product) in a single cascade reaction using samarium diiodide and HMPA.