Used as a weakly coordinating anion in catalysis, particularly in olefin polymerization and metallocene-based catalyst systems. Its high stability and low nucleophilicity make it ideal for stabilizing highly reactive cationic metal centers. Commonly employed in combination with activators like methylaluminoxane (MAO) to enhance catalyst activity and polymer molecular weight. Also utilized in organic synthesis for generating and maintaining carbocations and in electrochemical applications due to its thermal and chemical robustness.