CRCU

Chemical Research in Chinese Universities ›› 2001, Vol. 17 ›› Issue (1): 14-19.

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Synthesis, Crystal Structure and Reactivity of (2,4-C7H11)2Yb·DME

ZHANG Suo-bo1, LIU Ju zheng1, ZHUANG Xiu-li2, HUANG Jing-qin2, HU Ning-hai2, CHEN Wen-qi2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, P. R. China;
    2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
  • Received:1999-08-31 Online:2001-01-24 Published:2011-08-04
  • Supported by:

    Suppor ted by the National Natural Science Foundation of China.

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Abstract: (2,4-C7H11)2Yb·DME was synthesized by the reaction of YbCl3 with K(2,4-C7H11)(2,4-dimethylpentadienyl potassium), and the single crystal X-ray diffraction showed that the complex exists in a cis- staggered conformation. The crystal of the compound belongs to the monoclinic space group P21/n with a=0.875 2 (1)　nm, b=1.490　6(1)　nm, c=1.529　3(2)　nm, β=97.55(2)°, V=1.977 79(4)　nm3, Z=4, F(000)=735.8 e, μ=49.49　cm-1, R=0.033 and Rw=0.032.　The title complex can be used as a catalyst for the polymerization of methyl methacrylate(MMA).

Key words: 2, 4-Dimethylpentadienyl, Synthesis, Crystal structure, Catalyst, Polymerization