Symmetrically substituted 1,3-divinyltetramethyldisilyl chalcogenides (CH2=CHSiMe2)2E, where E = O, S, Se, and Te have been prepared and characterized by their ir, Raman, 1H and 13C nmr spectra. Reactions of the sulfide and selenide with anhydrous H2S and H2Se, respectively, are discussed.
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