摘要:
The well-defined, novel dinuclear group 4 metal complexes [4,4'-(C6H4)(2)(C5Me4)(2)][CpZrX2](2) (X = Cl (2a), Me (2b)), [4,4'-(C6H4)(2)(C5Me4)(2)][TiCl3](2) (3), and [4,4'-(C6H4)(2)(C5Me4)(2)][Ti(O-2,6-(Pr2Ph)-Pr-i)Cl-2](2) (4) exhibit an increase of molecular weight as well as comparable or even higher catalytic activity in ethylene (2 and 4) and styrene (3 and 4) polymerization than their mononuclear counterparts.