The Structure of Hydrolysis Products of Monochelate Pentacoordinate Chlorosilanes

Hydrolysis is one of the most common reactions for halides of both tetraand pentacoordinate silicon. In the compounds with an intramolecular coordination, the process might be complicated by the involvement of the coordinating donor atom. We have studied the hydrolysis of pentacoordinate chlorosilanes LCH2Si(R)MeCl (1, R = Me, Ph) with the intramolecular coordination O→Si in mono(C,O)-chelate bidentate monoanionic amidomethyl [LCH2 = R’C(O)NR”CH2; R’ = Alk, Ph; R” = H, Me, CH(Me)Ph], lactamomethyl or imidomethyl (LCH2 or ImCH2, respectively; n = ring size) ligands.