Siloxy Titanocene and Zirconocene Complexes Derived from the Ferriomethyl-Silanol Cp(OC)<sub>2</sub>Fe−CH<sub>2</sub>−SiMe<sub>2</sub>OH: Synthesis and Structure of Cp(OC)<sub>2</sub>Fe−CH<sub>2</sub>−SiMe<sub>2</sub>O−M(Cl)Cp<sub>2</sub> (M = Ti, Zr) and [Cp(OC)<sub>2</sub>Fe−CH<sub>2</sub>−SiMe<sub>2</sub>O]<sub>2</sub>−ZrCp<sub>2</sub>
The Et3N-assisted condensation of the ferriomethyl- silanol Cp(OC)(2)Fe-CH2-SiMe2OH (1) with 1 equiv of Cp2MCl2 (M = Ti,(2a), Z (2b)) leads to the formation of the iron fragment substituted heterosiloxanes CP(OC)(2)Fe-CH2-SiMe2O-M(Cl)Cp-2 (M Ti (3a), Zr (3b)). The bis(siloxy) zirconium complex, [CP(OC)(2)Fe-CH2-SiMe2O](2)-ZrCP2 (4) is obtained by further condensation of the M-Cl functionality of 3b with 1. The new compounds have been identified spectroscopically, and in addition, 3b and 4 have been structurally characterized by single-crystal X-ray diffraction methods.