Syntheses, structures and DFT study of [W(CO)5(Ph2SbX)] X = Cl, Br, I

The complexes [W(CO)5(Ph2SbX)], X = Cl (1), Br (2) and I (3) were prepared by reaction of [W(CO)5(tetrahydrofuran)] with Ph2SbX. The structures of 1–3 were studied by X-ray diffraction. In the crystals there are weak contacts between the oxygen atoms of the CO ligands and antimony atoms of neighbouring molecules. DFT calculations were carried out for 1 using gradient corrected functional B3LYP. The bonding between Ph2SbCl and the W(CO)5 fragment in 1 was analysed using charge decomposition analysis.