中文摘要：

利用一系列含O、S、N配位原子的导向型辅助配体，与四氯化锆发生配位反应，生成具有一定空间导向作用的中间体配合物，用于研究其与亚乙基桥联双茚二锂盐C2H4-（η5-Ind）2ZrCl2反应时对络舍产物非对映选择性合成的诱导作用。结果表明所合成的大多数辅助配体均导向选择性生成呈C2-对称的一对外消旋异构体rac-C2H4-（η5-Ind）2ZrCl2，产物中外消旋异构体rac-C2H4-（η5-Ind）2ZrCl2与内消旋异构体meso-C2H4-（η5-Ind）2ZrCl2的摩尔比最高达到74：26。进一步的研究表明，导向辅助配体与四氯化锆所形成的中间体配合物的结构、导向辅助配体配位原子类型及其取代基都对后续的导向选择性合成产生重要影响。

英文摘要：

A series of ancillary directing ligands bearing O, S, N atoms were used to react with ZrC14 to get the intermediate complexes, which showed certain diastereoselectivity when reacting with the dilithium salts of ethene-bridged bis（indene）. To carry out the selective synthesis, the ancillary directing ligand was firstly reacted with equal molar amount of ZrC14 in toluene under argon overnight. The resultant suspension was transferred to the solid salts of C2H4-[-（r]S-Ind）Li-]2 （molar ratio 1 ： 1） at 0 ~C. The reaction mixture was warmed up and stirred for 48 h at 30℃. Then the solvent was removed under vacuum and the residue was analyzed directly by I H-NMR spectroscopy to detect the relative amount of rac-C2 H4-（η5-Ind） 2 ZrC12 and meso-C2 Ha-（η5-Ind） 2 ZrC12. Most of these ancillary directing ligands assisted the formation of racemic isomers, rac-C2H4-（η5-Ind）2ZrCl2, with the molar ratio of rac-C2H4-（η5-Ind）2ZrC12 to meso-C2H4-（η5-Ind）2ZrCl2 as high as 74 ： 26. Further research demonstrated that the diastereoselectivity was significantly influenced by the structure, coordination atoms and substituents thereon of the intermediate complexes.