Polymetallocenes

Main-chain polymetallocenes, with short spacers characteristics, 12, 316 via condensations, 12, 317... 

Polymetallic iridium carbonyl complexes, preparation, 7, 291 Polymetallic nickel—alkenes, synthesis and reactivity, 8, 139 Polymetallocenes... 

Multimetallic sandwiches, including polymetallocenes, bis(fulvalene)-dimetal compounds, multi-decker sandwiches, and compounds in which two metals are bonded to a common unsaturated cyclic hydrocarbon are discussed in Section II. Sections III and IV are subdivided according to the metal group, and describe ligand-bridged bimetallics and metal clusters, respectively. Where appropriate, redox potentials have been included. Unless otherwise stated they are referenced versus the aqueous saturated calomel electrode (see). 

Cuadrado and co-workers prepared polysiloxanes with ferrocene and cobalticenium moieties in their backbone.180,181 Polymetallocene, 94, was synthesized by reacting l,3-bis(3-aminopropyl)-l,l,3,3-tetramethyldisiloxane with 1,1 -bis(chlorocarbonyl)ferrocene or 1,1 -bis(chlorocarbonyl)cobalticenium hexafluorophosphate. The organoiron polymer displayed a Mn = 10,600,180 whereas the organocobalt polymer possessed very low solubility in polar organic solvents.181 An alternative preparative route to this class of polymer is the reaction of l,l -bis((3-aminoethyl)ferrocene with dimethylbis(4-chlorocarbonylphenyl) silane.180... 

Side-chain Polymetallocene Homopolymers and Block Co-polymers... 

Main-Chain Polymetallocenes with Short Spacer Groups... 

Polymetallocenylenes and Polymetallocenes with Short Spacers via Condensation Routes... 

Other polymetallocenes with short spacers via polycondensation routes... 

Properties of other ring-opened polymetallocenes and related materials Polyferrocenylsilane block co-polymers Polyferrocenylphosphine block co-polymers... 

Polymetallocenes with Long Insulating Spacer Groups 348... 

Polymetallocenes with Long Conjugated Spacer Groups 355... 

An interesting class of metallocene-based macromolecules is the face-to-face and stacked polymetallocenes. 

There has also been considerable interest directed toward the synthesis of conjugated polymetallocenes due to the electronic communication that these materials may possess. Many polymetallocenes were produced via polycondensation reactions of I,l -disubstituted metallocenes. More rare are examples that describe the polycondensation of 1.3-disubstituted metallocenes. The synthesis of an optically active homoannularly substituted conjugatedpolyferrocene 7 was recently reported by Plenio and coworkers. 

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