| abstract |
An organometallic compound of the formula I n n n where M 1 is selected from among Fe, Ru and Os and M 2 is selected from among the transition metals of groups IV to VI of the Periodic Table, which can be prepared by reacting an organometallic compound of the formula II n n n with a transition metal compound of the formula III, n M 2 L 1 L 2 (L 3 ) x+1 III n where the variables are as defined above and the organometallic compound of the formula II can, if desired, be doubly deproteinated beforehand, can be used as part of a catalyst system for the polymerization or copolymerization of olefins. This catalyst system comprises one or more organometallic compounds of the formula I and at least one activator. The compound of the formula I can also be used to produce a solid catalyst comprising at least one organometallic compound of the formula I, at least one activator and a solid support by impregnating a support material with one or more organometallic compounds of the formula I and at least one activator. This solid catalyst can be used in a process for the polymerization or copolymerization of olefins in bulk, in suspension or in the gas phase. |