Cationic complexes of silicon and germanium with (O,S)-chelate ligands

Synthesis and X-ray diffraction study of cationic bischelates MeSi(SCH2CONMe2)(2)Cl-+(-) and MeGe(SCH2CONMe2)(2)Br-+(-) are reported. According to X-ray data, the Si and Ge atoms in these compounds have distorted TBP environments with two coordinating oxygen atoms in axial positions.