Silylated mixed-ligand rhenium complexes with the [PNS/S] donor atom set

New oxorhenium complexes with 2-(diphenylphosphanyl)-N-(2-thioethyl)benzamide (H₂PNS) and trimethyl-, triethyl- and triphenyl-hydroxyl silylated monodentate thiols are reported. These new complexes have been prepared by reacting [NⁿBu₄][R-e(O)Cl₄] with the tridentate H₂PNS and the corresponding silylated thiol at room temperature. The characterization of the complexes involved elemental analysis, ³¹P and ¹H NMR spectroscopies and X-ray crystallographic analysis for the triethyl-silylated Re complex.