Nickel(II) acetate
Nickel acetate is the name for the coordination compounds with the formula Ni2·x H2O where x can be 0, 2, and 4. The mint-green tetrahydrate Ni2·4 H2O is most common. It is used for electroplating.
Synthesis and structure
The compound can be prepared by treating nickel or nickel carbonate with acetic acid:The mint-green tetrahydrate has been shown by X-ray crystallography to adopt an octahedral structure, the central nickel centre being coordinated by four water molecules and two acetate ligands. It may be dehydrated in vacuo, by reaction with acetic anhydride or by heat.