To provide a new catalytic complex having sufficient thermal stability, and capable of controlling by a specified method a three-dimensional structure and electronic activity of ligands to a catalytic active center, and to provide a method for producing the complex, and a catalytic composition for polymerizing or copolymerizing an olefin, comprising the complex and an activating agent.
This complex is an organometallic compound of general formula I [M1 is Fe, Ru or Os; M2 is a group IV-VI transition metal; Nu1 and Nu2 are each N, P or As; R1 and R2 are each a 1-8C alkyl or the like; R3 to R10 are each hydrogen, a 1-8C alkyl or the like; L1 to L3 are each NR14R15 (R14 and R15 are each a 1-8C alkyl or the like) or the like; and x is an integer of 0-3].
BILDSTEIN BENNO
MALAUN MICHAEL
SIEMELING ULRICH
KUHNERT OLIVER
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