Widely used as a catalyst precursor in homogeneous catalysis, particularly in olefin polymerization and asymmetric hydrogenation reactions. Its rhodium center, stabilized by cyclooctadiene ligands and a non-coordinating borate anion, creates a highly active and selective cationic complex. This makes it effective in promoting C–C bond formation and enabling high enantioselectivity in the synthesis of chiral molecules, which is valuable in pharmaceutical and fine chemical industries. The electron-deficient borate counterion enhances catalyst solubility and stability in nonpolar media, improving performance in industrial processes.