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Organosilicon polymers containing (SiH 2 ) or (SiH 2 ) 2  units have been prepared via silyltriflate intermediates. Two methods of the formation of silicon-hydrogen bonds are described. Polysilaethylene [SiH 2 -CH 2 - ] n  has been prepared by ring-opening polymerization of tetraphenyl-1,3-disilacyclobutane followed by a protodesilylation reaction with triflic acid and reduction with LiAlH 4 . The reaction of H 2 Si(OTf) 2  or (TfO )H 2 Si- SiH 2 (OTf) with organolithium or organomagnesium compounds gave poly(silyleneethyne)s [(SiH 2 ) n -C≡C] n  and poly(silylenephenylene)s [(SiH 2)n -C 6 H 4  -] n . These polymers may serve as suitable precursors for ceramic materials. The TGA studies gave remarkably high ceramic yields. NMR measurements ( 29 Si,  13 C,  1 H) indicate an regular alternating arrangement of silicon atoms and organic groups in the polymer backbone.

Zur Darstellung von Organosiliciumpolymeren mit (-SiH 2 -) n -Gnippen/Synthesis of Organosilicon Polymers Containing ( – SiH 2 - ) n -Units