Me,SiF unter Bildung von 10. Zur Gewinnung von 11 durch Me3SiF-Abspaltung aus 9 wird 9 bei 6 Tom durch einen auf 400°C erhitzten, 30 cm langen Ofen geleitet. 10 und 11 werden destillativ gereinigt.
Three isomers of the title compound, a butadiene‐zirconocene with tert‐butyl substituents, could be identified at 310 K by NMR spectroscopy. In contrast to metallocenes with unsubstituted cyclopentadienyl groups, the rotation of the tBuC5H4 groups is a high‐energy process.
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