Chin. J. Org. Chem. ›› 2014, Vol. 34 ›› Issue (4): 821-828.DOI: 10.6023/cjoc201310047 Previous Articles     Next Articles



赵睿国a,b, 马海燕a   

  1. a 华东理工大学金属有机化学研究室 上海 200237;
    b 内蒙古大学化学化工学院 呼和浩特 010021
  • 收稿日期:2013-10-29 修回日期:2013-12-10 发布日期:2013-12-27
  • 通讯作者: 马海燕
  • 基金资助:

    国家自然科学基金(Nos. 20774027,21274041)和中央高校基本科研业务费(No. WK1214048)资助项目.

Synthesis and Characterization of ansa-Bis(3-chiral groupsubstituted indenyl) Zirconium Complexes

Zhao Ruiguoa,b, Ma Haiyana   

  1. a Laboratory of Organometallic Chemistry, East China University of Science and Technology, Shanghai 200237;
    b School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021
  • Received:2013-10-29 Revised:2013-12-10 Published:2013-12-27
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 20774027, 21274041) and the Fundamental Research Funds for the Central Universities (No. WK1214048).

Ethylene or methylene bridged bis(indenyl) compounds 1a3a bearing chiral substituent have been obtained by introducing (+)-neomenthyl or (+)-isocamphyl to the 3-position of indenyl ring. Two C2-symmetric ethylene bridged bis(indenyl) zirconium complexes 2b and 3b have been isolated readily from the reaction of the dilithium salts of these compounds with zirconium tetrachloride. The purification of corresponding meso-like, C1-symmetric complexes 2c and 3c was however not successful. All of the proligand compounds and zirconium complexes have been characterized by 1H NMR, 13C NMR spectra and elemental analysis (or HRMS). The molecular structure of 2c was further determined by X-ray single crystal diffraction analysis. The crystal of 2c belongs to orthorhombic, space group P2(1)2(1)2(1) with cell parameters a=10.946(4) Å, b=13.377(4) Å, c=24.294(8) Å, α=β=γ=90°, Mr=694.94, V=3557(2) Å3, Dc=1.298 g/cm3, Z=4, F(000)=1464, μ=0.486 mm-1, R=0.0296 and wR=0.0683 [I>2s(I)].

Key words: chiral group substituted indene, bridged bis(indenyl) ligand, zirconium complex, synthesis, crystal structure