PECULIARITIES OF THE SYNTHESIS OF CAGE-LIKE METALLOSILOXANES

The synthesis of individual Ni-, Mn-, and Na-containing cage-like orga nometallosiloxanes has been performed. A possible mechanism of the for mation of stable metallosiloxane frameworks via a transition complex a nd coordinately bound ion pairs has been proposed. Both monometallic a nd bimetallic organometallosiloxanes containing only atoms of a transi tion metal or two different (transition and non-transition) metals, re spectively, have been prepared.