Synthesis and reactivity of asymmetrically substituted ansa-bridged zirconocene complexes: X-ray crystal structures of [ZrR(H)C(η5-C5Me4)(η5-C5H4)Cl2] (R=Bun, But) and [ZrBun(H)C(η5-C5Me4)(η5-C5H4)(CH2Ph)2] | Publicación