Metallocenes are a class of organometallic compounds typically consisting of two cyclopentadienyl anions (Cp) bound to a metal center (M). The general formula for a metallocene is (Cp)_2M, where M can be a variety of transition metals such as titanium, zirconium, and hafnium. These compounds are known for their unique sandwich-like structure and have gained significant interest in catalysis due to their versatile chemical properties.
