Preparation and structural characterization of a heterobimetallic sulfide cluster compound[(eta~5-C_5Me_5)WS_3Au(dppms)]

摘要

A novel heterobimetallic sulfide cluster[eta~5-C_5Me_5)WS_3Au(dppms)][dppms=bis(diphenylphosphino)methane monosulfide]was prepared by the reaction of[PPh_4][eta~5-C_5Me_5)WS_3]with AuI and dppm[dppm=bis-(diphenylphosphino)methane]in MeCN.The title compound was fully characterized by elemental analysis,i.r.,u.v.-vis.,~1H-n.m.r.spectra,and by single crystal X-ray crystallography.In the molecular structure,the Au atom is trigonally coordinated by two bridging S atoms of a[(rys~5-C_5Me5)WS_3]~-anion and a P atom of the dppms molecule.The formation mechanism for this compound is discussed.