摘要:
The preparation and characterization of the ansa metallocene complexes [(C13H8)ER(2)(C5H4)]ZrCl2, [(2,7-(t)Bu(2)C(13)H(5))-SiR(2)(C5H4)ZrCl2 and [(2,7-(t)Bu(2)C(13)H(6))SiR(2)(C13H8)]ZrCl2 (E=Si or Ge; R=Me or Ph) are reported. The crystal structures of [(C(13)H(8)SiR(2)(C5H4)]ZrCl2 (R=Me, or Ph) have been determined and are discussed. The complexes are compared in respect to the polymerization behavior of propylene.