posted on 2015-12-17, 09:00authored byMohammad Aghazadeh Meshgi, Judith Baumgartner, Christoph Marschner
Oligosilanes
with attached silatranyl units were obtained by reactions
of potassium oligosilanides with a silatranyl triflate. Interaction
between Si and N atoms was observed in the 29Si NMR spectra
(upfield-shifted SiO3 resonances) and in the solid-state
structures (Si–N distances between 2.29 and 2.16 Å). The
Si–N interaction can be “switched off” either
by protonation of the nitrogen lone pair or by potassium silanide
formation caused by trimethylsilyl group cleavage in the presence
of potassium tert-butoxide.