Selenium-and tellurium-containing silatrane derivatives having an ECH2Si fragment (E = Se, Te)

Previously unknown 1-(methylselenomethyl)-and 1-(phenyltelluromethyl)silatrane, bis(silatranylmethyl) selenide, bis(silatranylmethyl) telluride, bis(silatranylmethyl) diselenide, and dimethyl(triethoxysilylmethyl)telluronium, phenyl(silatranylmethyl)telluronium, methylbis(silatranylmethyl)selenonium, methylbis(silatranylmethyl)telluronium, and tris(silatranylmethyl)selenonium iodides were synthesized. The NMR spectra of these compounds, as well as of isostructural (methylchalcogenomethyl)triethoxysilanes, 1-(methylchalcogenomethyl)silatranes, the corresponding methylchalcogenonium iodides, methylorganyl(silatranylmethyl)chalcogenonium iodides, bis(trialkoxysilylmethyl) chalcogenides, and bis(silatranylmethyl) chalcogenides, in CDCl 3 , CD 3 OH, CD 3 CN, and DMSO- d 6 were studied.