which can be converted to the corresponding metallocene dimethyl complexes (3a–3e). In combination with methylaluminoxane (MAO), 2a–2n show a higher catalytic activity as homogeneous ethylene polymerization catalysts than (C5H5)2ZrCl2. Compound 2d (R1 = 2-Me; R2 = 7-Me) was characterized by an X-ray structure analysis.
各种
锂芴基化合物Li(C 13 H 7 R 1 R 2)(R 1,R 2 = H,烷基或芳基)(1a-1n)与C 5 H 5 ZrCl 3的反应导致未桥连的
芴基配合物(C 5 H 5)(C 13 H 7 R 1 R 2)ZrCl 2(2a-2n)类型的
金属,可以转化为相应的茂
金属二甲基配合物(3a-3e)。与甲基铝氧烷(MAO)结合使用,2a–2n与(C 5 H 5)2 ZrCl 2相比,作为均相
乙烯聚合催化剂具有更高的催化活性。通过X射线结构分析表征化合物2d(R 1= 2-Me; R 2= 7-Me)。