Evidence for stereoregulations in the polymerisation of phenylsilane by bis (indenyl)dimethylzirconium complexes

Bis(indenyl)dimethylzirconocene, 1 , and [1,2-bis(indenyl)ethane]dimethylzirconocene, 2 , both catalyze the dehydropolymerization of phenylsilane to a mixture of low molecular weight cyclic oligosilanes (PhSiH)n (n = 6-9). The limited number of sharp resonances in the 29 Si and 1 H NMR spectra of th...

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Bibliographic Details
Published in:Canadian journal of chemistry 1990-09, Vol.68 (9), p.1638-1640
Main Authors: Gauvin, F, Harrod, J. F
Format: Article
Language:English
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Summary:Bis(indenyl)dimethylzirconocene, 1 , and [1,2-bis(indenyl)ethane]dimethylzirconocene, 2 , both catalyze the dehydropolymerization of phenylsilane to a mixture of low molecular weight cyclic oligosilanes (PhSiH)n (n = 6-9). The limited number of sharp resonances in the 29 Si and 1 H NMR spectra of the polymer produced with 2 as catalyst indicates that the catalyst exerts a significant stereoregulating influence on the polymerization. Keywords: polysilanes, catalytic dehydrocoupling, stereoregulation, bis(indenyl)zirconium complexes.
ISSN:0008-4042
1480-3291
DOI:10.1139/v90-254