Chemical Properties
Black, crystalline powder or blue-green
crystals; hygroscopic.Soluble in alcohol and water.
Uses
Nickel Diiodide is used in preparation of Nickel complexes for migratory reductive cross-coupling.
Uses
Strongly accelerates Sml2 mediated homocoupling of imines into vicinal diamines and heterocoupling reactions between imines and ketones.1
Uses
Strongly accelerates Sml
2 mediated homocoupling of imines into vicinal diamines and heterocoupling reactions between imines and ketones.
Preparation
Nickel iodide can be prepared by dehydration of the hexahydrate or by the
metathetic reaction between sodium iodide and nickel(II) chloride or nitrate in ethanol.
It has the CdCl2 type lattice and is paramagnetic down to 75°K. Only one hydrate is well
characterized—the blue-green NiI2?6H20 ; unlike the other halide hexahydrates, this contains [Ni(H2O)6]2+ cations.
Hazard
Toxic by ingestion.
