Synthesis and structure of titanium and zirconium disilane-1,2-diolates

C. Krempner, H. Reinke, K. Weichert

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Abstract

The synthesis and structure of zirconium and titanium complexes containing the chelating disilane-1,2-diolate ligand rac - [Me (Me3 Si)3 SiSiO]22 - (1)-2H are reported. The compounds (E)-[Me(Me3Si)3SiSiO]2TiCl2 (3a) and (E)-[Me(Me3Si)3SiSiO]2ZrCl2 · THF (3b) were prepared by the reactions of MCl4 (M = Ti, Zr) with {(E)-[Me(Me3Si)3SiSiO]2}2Ti (2a) and {(E)-[Me(Me3Si)3SiSiO]2}2Zr · HNEt2 (2b), which are derived from the reaction of 1 with Zr(NEt2)4 and Ti(OEt)4, respectively. Upon treatment with 3 equiv. of TiCl4, 2a undergoes a ring opening reaction to yield the dinuclear complexes (E)-[Me(Me3Si)3SiSiO]2Ti2Cl6 (4) and (E)-[Me(Me3Si)3SiSiO]2Ti2OCl4 (5). The solid state structures of 2a, 5 and TiCl4 · 2THF-d8 have been determined by X-ray crystallography.

Original languageEnglish
Pages (from-to)3633-3637
Number of pages5
JournalPolyhedron
Volume26
Issue number14
DOIs
StatePublished - Aug 31 2007

Keywords

  • Siloxides
  • Titanium
  • X-ray crystallography
  • Zirconium

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