Acta Cryst. (2005). E61, m1449-m1451  [ doi:10.1107/S1600536805020556 ]

Di--chloro-bis[bis(cumylcyclopentadienyl)yttrium(III)]

A. C. Boccia, F. Grisi, R. Centore and A. Tuzi

Abstract: The title yttrocene, [Y₂(C₁₄H₁₅)₄Cl₂] or [Y₂(cCp)₄Cl₂] (cCp = cumylcyclopentadienyl), belongs to a class of complexes bearing pendant phenyl substituents which are potentially active as catalytic precursors in the stereospecific polymerization of olefins. In the crystal structure, the molecules possess a crystallographically imposed inversion centre and may be described as centrosymmetric -Cl-bridged dimers. No -aryl coordination to the metal is observed. A distorted tetrahedral coordination geometry is found around the two metal atoms.

Online 6 July 2005

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