Issue 7, 2001
From the journal:

Journal of the Chemical Society, Dalton Transactions

ansa-Metallocenes with a Ph2Si bridge: molecular structures of HfCl2[Ph2Si(η5-C13H8)(η5-C5H4)] and HfCl2[Ph2Si(C13H9)(η5-C5H4)]2 †

Vyacheslav V. Izmer,a   Anton Y. Agarkov,a   Valentina M. Nosova,b   Lyudmila G. Kuz’mina,c   Judith A. K. Howard,d   Irina P. Beletskayaa  and  Alexander Z. Voskoboynikov*a  

* Corresponding authors

a Department of Chemistry, Moscow State University, V-234, Moscow, Russian Federation
E-mail: voskoboy@org.chem.msu.su

b State Research Institute of Chemistry and Technology of Organoelement Compounds, 38 Shosse Entuziastov, Moscow, Russian Federation

c N.S. Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, 31 Leninskii pr., Moscow, Russian Federation

d Department of Chemistry, Durham University, South Road, Durham, UK

Abstract

A mixture of rac- and meso-HfCl2[Ph2Si(η5-C9H6)2] was synthesized by treatment of HfCl4 with the dilithium salt of di(1H-inden-1-yl)diphenylsilane. These complexes were isolated after fractional crystallization in 15.5 and 8.5% yields, respectively. A sterically strained ansa complex HfCl2[Ph2Si(η5-C13H8)(η5-C5H4)] was synthesized in 62% yield by treatment of HfCl4 with the dilithium salt of cyclopentadienyl(fluoren-9-yl)diphenylsilane. Both this compound, and the by-product of reaction, HfCl2[Ph2Si(C13H9)(η5-C5H4)]2, were characterized by crystal structure analysis.

Graphical abstract: ansa-Metallocenes with a Ph2Si bridge: molecular structures of HfCl2[Ph2Si(η5-C13H8)(η5-C5H4)] and HfCl2[Ph2Si(C13H9)(η5-C5H4)]2 [ ]

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Article information

DOI
https://doi.org/10.1039/B009280K
Article type
Paper
Submitted
20 Nov 2000
Accepted
08 Feb 2001
First published
16 Mar 2001

J. Chem. Soc., Dalton Trans., 2001, 1131-1136

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ansa-Metallocenes with a Ph2Si bridge: molecular structures of HfCl2[Ph2Si(η5-C13H8)(η5-C5H4)] and HfCl2[Ph2Si(C13H9)(η5-C5H4)]2

V. V. Izmer, A. Y. Agarkov, V. M. Nosova, L. G. Kuz’mina, J. A. K. Howard, I. P. Beletskaya and A. Z. Voskoboynikov, J. Chem. Soc., Dalton Trans., 2001, 1131 DOI: 10.1039/B009280K

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