Bis(thioether)silanes: Synthesis and characterization of tin(IV) complexes with new dithioether ligands

Abstract

The bis(thioether)silanes Me 2 Si(CH 2 SR) 2 (abbreviated Bts R , where R ¼ Me or Pr i ), the first two members of a new family of bidentate thioether ligands, have been readily prepared and fully characterized. The tin(IV) tetrahalide derivatives (Bts R )SnX 4 (X ¼ Cl, Br), which comprise the first four metal coordination complexes of these new sulfur-donor ligands, have also been isolated, and the X-ray structure of the tetrabromide derivative (Bts Me )SnBr 4 confirms the chelating nature of the dithioether.

The chemistry of the p-block elements with thioether, selenoether and telluroether ligands

“…36 Distorted octahedral tin(IV) chloride and bromide complexes containing the bis(thioether)silane ligands Me 2 Si(CH 2 SR) 2 (R = Me or i Pr) were obtained in high yield from reaction of the ligand with [SnCl 4 (OEt 2 ) 2 ] or SnBr 4 . The structure of [SnBr 4 {Me 2 Si(CH 2 SMe) 2 }] was reported 42 and is very similar to that of earlier tetrahalide complexes with chelating dithioethers. 7, 40 Several other new complexes of SnCl 4 with acyclic thio-and seleno-ether ligands have been characterised recently in a study into their potential use as single-source CVD reagents for the deposition of tin sulfide and tin selenide thin films.…”