A new way of introducing metal oxide fragments into polysilane chains

When permethyl-alpha,omega-dichlorooligosilanes undergo heterofunctional co ndensation with metal acetates, the formation of a metallosiloxane fragment is the predominant process, whereas the formation of cyclosilane-siloxane resulting from the exchange of functional groups between the silicon and me tal atoms is a side reaction. The scheme of these transformations is propos ed.