有机化学 ›› 2004, Vol. 24 ›› Issue (3): 281-285. 上一篇    下一篇

研究论文

配合物{[(C9H7)3Yb]2Cl}[Na·6THF] (I)的合成及其还原生成(C9H7)2Yb·2THF (II)的研究、配合物I和II的晶体结构

刘太奇*,a,b, 沈琪c, 丁福臣a, 林永华b, 陈文启b   

  1. a 北京石油化工学院材料与化工系 北京 102600
    b 中国科学院长春应用化学研究所 长春 130022
    c 苏州大学化学系 苏州 275001
  • 收稿日期:2003-04-29 修回日期:2003-07-14 接受日期:2003-09-02 发布日期:2022-09-20

Synthesis of {[(C9H7)3Yb]2Cl}[Na·6THF] (I). Its Reaction with Sodium to Form (C9H7)2Yb·2THF (II), and Molecular Structures of I and II

LIU, Tai-Qi*,a,b, SHEN, Qic, DING, Fu-Chena, LIN, Yong-Huab, CHEN, Wen-Qib   

  1. a School of Material and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102600
    b Changchun Institute of Applied Chemistry, Chinese Academy of Sciences,Changchun 130022
    c Department of Chemistry, Suzhou University, Suzhou 215007
  • Received:2003-04-29 Revised:2003-07-14 Accepted:2003-09-02 Published:2022-09-20
  • Contact: *E-mail: fgtao@fudan.edu.cn; Fax: 021-65641740.

三氯化钇与茚基钠以1∶2摩尔比于THF中,在50 ℃下反应,歧化生成了离子型配合物{[(C9H7)3Yb]2Cl}[Na·6THF] (I). X射线结构分析表明,配合物I是由阴离子{[(C9H7)3Yb]2Cl}-及阳离子[Na·6THF]+组成的离子对,阴离子由一个氯桥把两个(C9H7)3Yb基团连接在一起.配合物[(C9H7)3Yb)2Cl][Na·6THF]为三斜晶系,P1空间群,晶胞参数,a=1.0682(2) nm, b=1.2687(3) nm, c=1.2869(2) nm, α=87.223(1)°,β=81.755°, γ=88.217°, V=1.7273(1) nm3, Z=1.配合物I的结构用重原子法确定,用full-matrix least-squares法修正,一致性因子为 R=0.062, Rw=0.072.配合物{[(C9H7)3Yb]2Cl}[Na·6THF]与金属钠反应,生成(C9H7)2Yb·2THF (II).配合物II的分子结构经过了X射线的表证.

关键词: 镧系金属配合物, 晶体结构, 反应

The reaction of 1∶2 molar ratio of anhydrous YbCl3 with sodium indenylin tetrahydrofuran (THF) resulted in the formation of [Na(THF)6][(η5-C9H7)3Yb(μ-Cl)Yb(η5-C9H7)3] with a good yield. X-Ray analysis demonstrates that the complexconsists of a disconnected ion pair formed by [(η5-C9H7)3Yb(μ-Cl)Yb(η5-C9H7)3] anion and the sodium cation surrounded by six THF molecules. The complex crystallizes in the triclinic system, with space group P1 with unit-cell constants a=1.0682(2) nm, b=1.2687(3) nm, c=1.2869(2) nm, α=87.323(1) °, β=81.755 °, γ=88.217°, V=1.7273(1) nm3, for Z=1. The structure was solved by direct methods and full-matrix least-squares refinement to the final R=0.062, Rw=0.072. [Na(THF)6][(η5-C9H7)3Yb(μ-Cl)Yb-(η5-C9H7)3] reacted with sodium to form (C9H7)2Yb·2THF, the structure of which was also determined by X-ray.

Key words: lanthanide complex, crystal structure, reaction