高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (4): 580.

• 论文 • 上一篇    下一篇

碳碳偶合反应中间体Li[Cp2Zr(C≡CPh)·(η2∶1,2-PhC2C≡CPh)]的合成和晶体结构

赵建社, 顾爱萍, 何水样, Choukroun Robert, Valade Lydie, Cassoux Patrick   

  1. 1. 西北大学化学系, 陕西省物理无机化学重点实验室, 西安 710069;
    2. 法国国家科研中心配位化学实验室, 图卢兹 31077
  • 收稿日期:2002-06-21 出版日期:2003-04-24 发布日期:2003-04-24
  • 通讯作者: 赵建社(1955年出生),男,博士,教授,从事金属有机和材料化学研究.E-mail:jszha@nwu.edu.cn E-mail:jszha@nwu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20071027);陕西省科委自然科学基金(批准号:2000H04);陕西省教育厅专项基金(批准号:00JK130)资助

Synthesis and Crystal Structure of Anionic Zirconium(Ⅱ) Intermediate for Carbon-carbon Coupling: Li[Cp2Zr(C≡CPh)(η2∶1,2-PhC2C≡CPh)]

ZHAO Jian She, GU Ai Ping, HE Shui Yang, Choukroun Robert, Valade Lydie, Cassoux Patrick   

  1. 1. Shaanxi Key Laboratory of Physico Inorganic Chemistry, Department of Chemistry, Northwest University, Xi′an 710069, China;
    2. Laboratoire de Chimie de Coordination du CNRS, F31077 Toulouse, France
  • Received:2002-06-21 Online:2003-04-24 Published:2003-04-24

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摘要： 室温下,用Cp2ZrCl2与LiC≡CPh反应,合成了碳碳偶合反应的Zr(Ⅱ)阴离子中间体Li[Cp2Zr(C≡CPh)(η2:1,2-PhC2C≡CPh)].用元素分析、核磁共振谱和红外光谱对配合物进行了表征,配合物的晶体结构分析给出了两个炔烃之间碳碳偶合的证据.用核磁共振谱初步探讨了合成反应机理.

关键词: 碳碳偶合反应, Zr(Ⅱ)阴离子中间体, 合成, 晶体结构

Abstract: The unexpected anionic Zr(Ⅱ) complex [Cp2Zr(C≡CPh)(η2: 1,2 PhC2C≡CPh)]- was isolated from LiC≡CPh and Cp2ZrCl2 in THF, giving clear evidence for a C-C coupling between two alkynyl moieties, one of them being η2 bonded to the zirconium atom. The complex was characterized by elemental analysis, NMR, IR spectroscopy and X ray diffraction. The synthesis reaction mechanism was discussed.

Key words: C C coupling, Anionic zirconium(Ⅱ) intermediate, Synthesis, Crystal structure

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