Synthesis and characterization of cyclic acylsilanes.

Acylcyclohexasilanes are interesting starting materials for the formation of cyclic silenes. Employing standard cyclopolysilane synthetic procedures, nine previously unknown acylcyclohexasilanes were synthesized and characterized by NMR, and UV-Vis spectroscopy and X-ray crystallography to elucidate substituent influences of the R-group attached to the carbonyl C-atom. [ABSTRACT FROM AUTHOR]