Synthesis and crystal structure of one carbon-atom bridged lutetium complex [Ph2C(Flu)(Cp)]LuN(TMS)2 and catalytic activity for polymerization of polar monomers
摘要:
The one-carbon atom bridged amide complex [Ph2C(Flu)(Cp)]LuN(TMS)(2) (2) (Flu = C13H8 Cp = C5H4, TMS = SiMe3) has been synthesized by reaction of its chloride precursor with LiN(TMS)(2) in toluene. An X-ray structure of the amide complex 2 exhibits apparently intramolecular Si-beta-C agostic interaction with Lu. Polymerization of methyl methacrylate (MMA) and lactones with this complex has also been investigated. (C) 2002 Elsevier Science B.V. All rights reserved.