Widely used as a catalyst in organic synthesis, particularly in cross-coupling reactions such as Kumada, Negishi, and Suzuki reactions, enabling the formation of carbon-carbon bonds. It is especially effective in the polymerization of alkenes and alkynes due to its ability to activate carbon-halogen bonds. Also employed in the synthesis of fine chemicals, pharmaceuticals, and advanced materials where high selectivity and mild reaction conditions are required. Its zero-valent nickel center with labile ligands allows for easy oxidative addition, making it a powerful reagent in homogeneous catalysis.