Shape metal iron coupling

Star-shaped polyaromatic ethers complexed with cyclopentadienyliron cations (92) have been prepared, in which the metallic moieties are evenly spaced throughout the length of the macromolecular branches (Scheme 24). By altering the nature of the aromatic spacers between the complexed arenes, it was possible to alter the properties of these materials. Electrochemical analysis of these polymers demonstrated that the iron centers underwent reversible reduction processes. For the hexa-metallic stars (n=l), two distinct redox couples were observed at , /2=-1.20 and-1.30 V... 

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