| http://www.w3.org/ns/prov#value | - Cp*, Z and each L3 are as defined in claim 3; E is silicon or carbon; R1 each occurrence is independently selected from the group consisting of hydrogen, silyl, hydrocarbyl or hydrocarbyloxy having up to 30 carbon or silicon atoms; and x is an integer of 1 to 8; and wherein said pre-catalyst Group (2) reactants form at least one transition metal compound represented by the formula: wherein:
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