Computational study of conformations and of sulfinyl oxygen-induced pentacoordination at silicon in 4-chloro-4-silathiacyclohexane 1-oxide and 4,4-dichloro-4-silathiacyclohexane 1-oxide

Boat and twist conformers of axial chlorosilathiacyclohexane 1-oxides were found to be minima and to be stabilized by transannular coordination of the sulfinyl oxygen with silicon that resulted in trigonal bipyramidal geometry at silicon.