中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (4): 98-101.

• 研究简报 • 上一篇    下一篇

(η5-C5H5)Ln(η8-C8H8)(THF)n(Ln=Pr,Nd,Gd)的合成及(η5-C5H5)Pr(η8-C8H8)(THF)2的晶体结构

文珂, 金钟声, 陈文启   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1990-11-27 修回日期:1991-07-20 出版日期:1992-08-10 发布日期:1992-08-10
  • 基金资助:
    国家自然科学基金;稀土化学与物理开放实验室资助项目

SYNTHESIS OF (η5-C5H5)Ln(η8-C8H8 )(THF)(Ln=Pr,Nd,Gd) AND CRYSTAL STRUCTURE OF (η5-C5H5)Pr(η8-C8H8)(THF)

Wen Ke, Jing Zhongsheng, Chen Wenqi   

  1. Changchun Institute of Applied Chemistry Academia Sinica, Changchun 130022
  • Received:1990-11-27 Revised:1991-07-20 Published:1992-08-10 Online:1992-08-10

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摘要： 自1969年首次报道稀土环辛四烯基化合物Eu(C8H8)和Yb(C8H8)的合成以来,相继合成K[Ln(C8H8)2],[Ln(C8H8)Cl·2THF]2和[Ln(C8H8)·2THF]等,还报道了[K(CH3OCH2CH2)2O][Ce(C8H8)2][2],[Cc(C8H8)Cl·2THF]2[3][(C8H8)2·2THF][Nd(C8H8)2][4]等晶体结构。

关键词: 环戊二烯, 环辛四烯, 稀土配合物, 合成, 晶体结构

Abstract: The title compounds (Ln=Pr, Nd, n=2; Ln=Gd, n=1) were prepared by reacting LnCl3 with NaC5H5 and K2C8H8. The single crystals of (η5-C5H5)Pr(η8-C8H8)(THF)2 obtained at -15℃ in THF have monoclinic space group P21 and a=0.8427(2)nm, b=0.9835 (2)nm, c=1.1799(2)nm, β=102.82(2)°, v=0.9536nm3, and Z=2. The final R value is 0.0383. The centroids of the C5H5 ring, C8H8 ring,and the two oxygen atoms from the two THF molecules form a distorted tetrahedron.

Key words: cyclopentadienyl, cyclooctatetraenyl, rare eatrh complex, synthesis, crystal structure

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