SYNTHESIS AND PROPERTIES OF PHENYLIODOCYCLOPENTASILANES

Decaphenylcyclopentasilane reacts with anhydrous HJ in a sealed tube to give phenyliodocyclopentasilanes and benzene, and the degree of phenyl cleavage was found to depend on the reaction time. The corresponding methoxyphenylcyclosilanes are obtained in the reaction with methanol. Hydrolysis yields a yellow, fluorescent, polymeric compound containing Si5-rings coupled by oxygen. The colour of the hydrolysis products is discussed in connection with pertinent results in siloxene chemistry. © 1969 Springer-Verlag.