Five and six-coordinate silicon complexes with an O,N,O′-chelating ligand derived from o-hydroxyacetophenone–N-(2-hydroxyethyl)imine

The reaction of o-hydroxyacetophenone–N-(2-hydroxyethyl)imine, 1, with suitable chlorosilanes in the presence of triethylamine gives access to five and six-coordinate silicon complexes. The molecular structures of TBPY-5–34-[2-oxy-κO-acetophenone–N-(2-oxy-κO-ethyl)iminato-κN]diphenylsilane, C22H21NO2Si, 2, and OC-6–22′-bis[2-oxy-κO-acetophenone–N-(2-oxy-κO-ethyl)iminato-κN]silicon · chloroform, C20H22N2O4Si · CHCl3, 3, have been determined as representative examples.