Interaction of carbon dioxide with the bis(trimethylsilyl)acetylene complex of permethyltitanocene: synthesis and structure of the binuclear carbonate complex of permethyltitanocene (Cp2∗Ti)2CO3

Abstract 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 CO 3 . The structure of (Cp 2 ∗ Ti) 2 CO 3 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.