Acta Cryst. (2006). E62, m465-m468  [ doi:10.1107/S1600536806004156 ]

Di--hydroxo-⁴O:O-bis[aquatris(triphenylsilanolato-O)zirconium(IV)] toluene solvate

B. Schweder, D. Walther and W. Imhof

Abstract: The title compound, [Zr₂(C₁₈H₁₅OSi)₆(OH)₂(H₂O)₂]·C₇H₈, is a dimeric Zr^IV compound. The asymmetric unit consists of two half-molecules of the complex and a toluene solvent molecule. The zirconium centres are bridged by two -hydroxo ligands. Each Zr is octahedrally coordinated by the hydroxo groups, three triphenylsilanolato groups and an additional water ligand. The centres of both Zr₂O₂ rings are located on crystallographic centres of inversion. The two independent monomeric units differ significantly with respect to the Zr-O-Si bond angles which is most probably due to the high steric demands of three triphenylsilanolato ligands.

Online 8 February 2006

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