Interaction of carbon dioxide with the bis(trimethylsilyl)acetylene complex of permethyltitanocene: Synthesis and structure of the binuclear carbonate complex of permethyltitanocene (Cp(2)(*)Ti)(2)CO3

It has been shown that in the interaction of carbon dioxide with the bis(trimethylsilyl)acetylene complex of permethyltitanocene Cp(2)*Ti(Me(3)SiC(2)SiMe(3)), full displacement of bis(trimethylsilyl)acetylene from the titanium coordination sphere takes place and carbon dioxide undergoes disproportionation to form Cp(2)(*)Ti(CO)(2) and the binuclear carbonate complex of permethyltitanocene (Cp(2)*Ti)(2)CO3. The structure of (Cp(2)*Ti)(2)CO3 has been established by X-ray diffraction study. Structural data on the related chlorine-containing carbonate complex Cp(2)*Ti(Cl)CO(3)TiCp(2)* are also reported.