Iron and Cobalt Complexes with Peripheral N-Heteroaromatic Substituents

Diiminepyridine Iron and Cobalt Complexes with Peripheral N-Heteroaromatic Substituents 

The same general polymerization set up as described for the diimine complexes was used here. The polymerization time was reduced to one hour. In cases that no solid polymer was formed, the organic layer was evaporated to yield an oily residue. Tab. 3.3 summarizes the polymerization results together with relevant properties of the polymers. 

From these data, the following general trends can be deduced. 

Precatalyst Amt of Pe/Co [fimol] Amt of polymer fg] Activity [g polymer/ (mmol Fe/Cojh] 

Precatalyst 2 Methyl branches 27 Ethyl branches 27 Butyl branches 27 C6 branches Total methyl branches 

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