中文摘要：

Diisopropylamido bisindenyl lanthanides(C9H7)2LnN(i-Pr)2(Ln=Gd(1),Y(2),Er(3))were successfully synthesized in satisfied yield by the reaction of Ln(N(i-Pr)2)3(THF)with indene in 1:2 molar ratio in toluene.All of the complexes exhibit very high catalytic activity in the polymerization of methyl methacrylate.The resulting polymers have narrow molecular weight distributions and high syndiotacticity.

英文摘要：

Diisopropylamido bisindenyl lanthanides (C9H7)2LnN(i-Pr)2 (Ln=Gd(1), Y(2), Er (3)) were succesfully synthesized in satisfied yield by the reaction of Ln(N(i-Pr)2)3(THF) with indene in 1:2 molar ratio in toluene. AH of the complexes exhibit very high catalytic activity in the polymerization of methyl methacrylate. The resulting polymers have narrow molecular weight distributions and high syndiotacticity.