高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (10): 1891.

• 研究论文 • 上一篇    下一篇

柄型金属有机化合物(Ⅵ)——四甲基二硅氧桥连不对称茂金属化合物的合成、结构及催化乙烯聚合

徐善生1, 吴涛1, 崔惠玲1, 代徐良1, 王佰全1,2, 周秀中1, 邹丰楼3, 李杨3   

  1. 1. 南开大学化学系, 元素有机化学国家重点实验室, 天津 300071;
    2. 中国科学院上海有机化学研究所金属有机化学国家重点实验室, 上海 200032;
    3. 北京燕山石油化工研究院, 北京 102500
  • 收稿日期:2001-07-06 出版日期:2002-10-24 发布日期:2002-10-24
  • 通讯作者: 王佰全(1968年出生),男,博士,教授,博士生导师,从事金属有机化学及均相催化研究.E-mail:bqw ang@public.tpt.t j.cn E-mail:bqw ang@public.tpt.t j.cn
  • 基金资助:

    国家自然科学基金(批准号:29734142);中国石油化工集团公司资助;教育部留学回国人员科研启动基金资助

Ansa-metallocene Complexes(Ⅵ)—— Synthesis,Structure and Application in Ethylene Polymerization of Tetramethyldisiloxane-bridged Mixed Metallocene Complexes

XU Shan-Sheng1, WU Tao1, CUI Hui-Ling1, DAI Xu-Liang1, WANG Bai-Quan1,2, ZHOU Xiu-Zhong1, ZOU Feng-Lou3, LI Yang3   

  1. 1. Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianj in 300071, China;
    2. State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, Shanghai 200032, China;
    3. Research Institute of Beijing Yanshan Petrochemical Co.L td., Beijing 102500, China
  • Received:2001-07-06 Online:2002-10-24 Published:2002-10-24

摘要: 四甲基二硅氧桥连不对称环戊二烯基及茚基配体C5H5Me2SiOSiMe2Cp′H相继与丁基锂及MCl4·2THF作用,生成四甲基二硅氧桥连不对称茂金属化合物(Me2SiOSiMe2)(C5H4)(Cp′)MCl2[Cp′=C5H3But,M=Ti(1),Zr(2);Cp′=C9H6,M=Ti(3),Zr(4)].通过元素分析、MS和1H NMR谱表征了化合物的分子结构,并通过X射线衍射分析测定了化合物1的晶体结构.研究了在MAO(甲基铝氧烷)的助催化下,化合物1~4对乙烯聚合的催化性能.

关键词: 柄型金属茂化合物, 烯烃聚合催化剂, 金属有机配合物

Abstract: Tetramethyldisiloxane-bridged asymmetric cyclopentadienyl ligands react with n-butyl lithium and MCl4·2THF to give tetramethyldisiloxane-bridged substituted asymmetric metallocenes(Me2SiSiMe2)(C5H4)(Cp′)MCl2[Cp′=C5H 3Bu-t, M=Ti(1), Zr(2); Cp′=C9H6, M=Ti(3), Zr(4)]. Complexes 1-4 were characterized by means of 1H NMR, mass spectra and elemental analyses. The crystal structure of complex 1 was determined by X-ray diffraction analysis. Complexes 1-4 were used for the catalytic polymerization of ethylene after the activation with methyl aluminoxane(MAO).

Key words: Ansa-metallocene, Olefin polymerization catalyst, Organometallic complexes

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