Isolation and characterisation of a well defined precatalyst for the ring-opening polymerisation of silicon-bridged [1]ferrocenophanes
Abstract
Reaction of the silicon-bridged [1]ferrocenophane
[Fe(η-C
5
H
4
)
2
SiMe
2
] with
[Pt(cod)
2
] (cod = cycloocta-1,5-diene) yields a
[2]platinasilaferrocenophane
[Fe(η-C
5
H
4
)
2
Pt(cod)SiMe
2
] which functions as a precatalyst for the ring-opening
polymerisation of the silicon-bridged
[Fe(η-C
5
H
4
)
2
SiMe
2
] to
yield the poly(ferrocenylsilane)
[{Fe(η-C
5
H
4
)
2
SiMe
2
}
n
]; a key step in the mechanism is believed to
involve dissociation of the cod ligand.
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