Reaction of the titanocene alkyne complex Cp2Ti(η2-Me3SiC2SiMe3) with selenium dioxide: Preparation and characterization of a novel tetranuclear titanium complex with selenium and oxo bridges

The low valent titanocene(II) source Cp2Ti(η2-Me3SiC2SiMe3) 1 reacts with selenium dioxide (2) to obtain a tetranuclear selenium and oxygen bridged titanocene(IV) [{Cp2Ti(µ2-O; µ2-Se)CpTi}2(µ2-O)] 6. The molecular structure was confirmed by X-ray analysis.