Used as a catalyst in organic synthesis, particularly in cross-coupling reactions such as the Negishi coupling, where it facilitates the formation of carbon-carbon bonds. Employed in the preparation of other nickel-based reagents and complexes used in industrial and laboratory-scale reactions. Also utilized in electroplating processes to deposit nickel coatings on metals, providing corrosion resistance and improved surface finish. Serves as a precursor in the synthesis of electronic materials and in some battery technologies. Additionally, finds use in research settings for studying nickel coordination chemistry and reaction mechanisms.