中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (6): 107-109.

• 研究简报 • 上一篇    下一篇

η3-2-甲基烯丙基稀土配合物的合成及其催化性质的研究

李凤富, 金鹰泰, 裴奉奎, 王佛松   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1991-11-19 修回日期:1992-03-14 出版日期:1992-12-10 发布日期:1992-12-10

SYNTHESIS AND CATALYTIC PROPERTIES OF η3-2-METHYLALLYL-RARE EARTH COMPLEXES

Li Fengfu, Jin Yingtai, Pei Fengkui, Wang Fosong   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-11-19 Revised:1992-03-14 Published:1992-12-10 Online:1992-12-10

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摘要： 1975年CouPs和Wailes首次合成了第一个η3-烯丙基稀士配合物——Cp2Sc(η3-C3H5)[1]。由于该类配合物稳定性差难于合成,目前为止文献上仅有几篇报道[2]。其中代表性的例子是1991年吴文玲等人[2c]合成的(η3-cC3H5)2CeCl5Mg2(tmed)2,并测定了其晶体结构。

关键词: 烯丙基稀土配合物, 苯乙烯, 异戊二烯, 聚合

Abstract: Three η3-allyl-rare earth complexes were synthesized by reacting anhydrous lanthanide trichloride with CH2=C(CH3)-CH2MgCl at 1:2 molar ratio in tetrahydrofuran. The complexes with the general formula (η3-2-CH3-C3H4)2LnCl5Mg2(tmed)2(Ln=La, Ce, and Nd)were characterized by elemental analyses, IR spectra and MS. These complexes can polymerize styrene and isoprene, giving atactic polystyrene and equal binary polyisoprene respectively.

Key words: allyl-rare earth complex, styrene, isoprene, polymerization

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