Self-immobilized metallocene catalysts bearing an allyl group for ethylene polymerization, X-ray crystal structure of [(CH2CHCH2)CH3Si(C13H8)2]ZrCl2
作者:Guangrong Tang、Guo-Xin Jin、Linhong Weng
DOI:10.1016/j.jorganchem.2003.12.009
日期:2004.2
an allyl substituted silane bridge [(CH2CHCH2)CH3Si(C5H4)2]TiCl2 (1), [(CH2CHCH2)CH3Si(C9H6)2]MCl2 [M=Ti (2), Zr (3), Hf (4)] and [(CH2CHCH2)CH3Si(C13H8)2]ZrCl2 (6) have been synthesized and characterized. The molecular structure of 6 has been determined by X-ray crystallographic analysis. Complexes 1–4, 6 bearing allyl groups have been investigated as self-immobilized catalysts for ethylene polymerization
一系列的柄与烯丙基茂金属络合物取代的硅烷桥[(CH 2 CHCH 2)CH 3的Si(C 5 H ^ 4)2 ]的TiCl 2(1),[(CH 2 CHCH 2)CH 3的Si( ç 9 ħ 6)2 ]的MC1 2 [M =的Ti(2),锆(3),HF(4)]和[(CH 2 CHCH 2)CH 3的Si(C 13 H ^ 8)2已经合成并表征了] ZrCl 2(6)。6的分子结构已通过X射线晶体学分析确定。配合物1 - 4,6轴承烯丙基已经被研究作为在MMAO存在乙烯聚合自固定化催化剂。结果表明,自固定化催化剂1 - 4,6保持约的高乙烯聚合活性 10 6克PE摩尔-1月时-1和高分子量(中号瓦特≈10 5聚乙烯)。