New Types of Low Molecular‐Weight Heterosiloxanes

Abstract

Low molecular-weight model substances of well-defined composition were prepared for the first time in connection with an investigation of the principles of structure and bonding in heterosiloxanes. Examples of such compounds are RiSiOXR:, (RiSi0)2XR$ (R:Si0)3XR2, and (RiSi0)dX. where X = Si, Ge, Sn, or Pb, R1 = CH3 or CzHs, and R2 = CH3, C2H5, etc. Specific heterolytic cleavage reactions with Lewis acids or nucleophilic reagents, as well as infrared and N M R