Synthesis and spectroscopic studies of antimony pentachloride complexes with neutral oxygen, sulfur and selenium ligands

The compounds [SbCl5(R3EY)] (R = Me or Ph; E = P or As; Y = O or S) and some analogues with diphosphine- and diarsine dioxides, have been prepared, and characterised. R3PSe and R3SbS are converted to R3PCl2 and R3SbCl2 respectively.