Neue anorganische Ringsysteme X. Die sechsgliedrigen Ringsysteme PIIISi2N3, PIIISi2N2O und PvSi2N2O

Survey on the first-time syntheses of new inorganic ring systems in our team (scheme 1). – The title ring systems were prepared according to equ. (1–5) and varied in the compounds I–IX (table 1). Introduction of a P atom into the SiN ring system gives rise to a splitting of the proton signals of the substituents in the ¹H nmr spectra (table 2), mostly in cause of coupling, partly in cause of steric effects.