Soluble poly(1,1′‐ferrocenylene‐p‐terphenyl‐4,4″‐ylene)s via Pd‐catalyzed polycondensation

Organometallic Polymers with Transition Metals in the Main Chain

“…Conjugated organic polymers such as polyacetylene, poly( p -phenylene) or poly( p -phenylene vinylene) are typically insoluble and rigid materials that are difficult to process. Several attempts have been made to introduce skeletal ferrocene units into the main chain of these materials − which has been shown to increase the flexibility and solubility of the chains .…”

Silacyclobutane‐Based Diblock Copolymers with Vinylferrocene, Ferrocenylmethyl Methacrylate, and [1]Dimethylsilaferrocenophane

“…Ferrocene‐containing polymers are of high scientific and technical interest because of their unique mechanical, (electro)chemical, (opto)electronic, and magnetic properties 1–12. Many routes have been tested for their synthesis, but there is still an urgent need for more powerful living chain‐propagation protocols.…”

Metallocene-containing conjugated polymers

“…In particular, a polymer with a single phenylene unit in the chain and all Cp ligands with two alkyl substituents, poly(3,3′-dihexyl-4,4′-dimethyl-1,1′-ferrocenylene phenylene) (Scheme 64a), was prepared via the reaction of dilithio bis(3-hexyl-4-methylcycylopentadienide)phenylene and iron(II) iodide in THF [406]. Polymers with longer chains containing from 3 to 7 p-phenylene units, poly(1,1′-ferrocenylene-alt-p-terphenyl-4,4″-ylene), poly (1,1′-ferrocenylene-alt-p-quinquephenyl-4,4⁗-ylene), and poly(1,1′-ferrocenylene-alt-p-septiphenyl-4,4‴‴-ylene), were prepared via Pd-catalyzed polycondensation (Scheme 64b) [438,439]. The central phenylene ring in each chain contained a couple of long-chain alkyl substituents, n-hexyl or n-dodecyl, to make the polymers soluble.…”