Polyferrocenylsilanes (PFSs) are an interesting class of high molecular weight transition metal-containing polymers which exhibit attractive redox, semiconductive, preceramic and other physical properties. Convenient routes to a range of cationic and anionic water-soluble PFS polyelectrolytes have been achieved. These metal-containing materials are readily soluble in water and have been utilized in the self-assembly of multilayer superlattices. The electrostatic assembly of the water-soluble PFSs have also been used in tuning the optical properties of photonic crystals with nanometer scale precision.
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