Used as a metallocene catalyst in olefin polymerization, particularly in the production of polyethylene and polypropylene with highly controlled molecular structure. Enables synthesis of polymers with narrow molecular weight distribution and specific stereochemistry. Commonly applied in gas-phase or slurry processes to manufacture high-performance plastics with improved mechanical and thermal properties. Effective in copolymerization of ethylene with alpha-olefins, yielding linear low-density polyethylene (LLDPE) with uniform comonomer distribution. Often paired with methylaluminoxane (MAO) as a co-catalyst to achieve high catalytic activity at low temperatures.