Structural information on 11 gold (1) thiolates and 12 phosphine-coordinated gold (1) thiolates has been collected by using Ig7Au Mbsbauer spectroscopy. The compounds studied include the injectable antiarthritic drugs gold sodium thiomalate (l), gold thioglucose (6), gold sodium thiosulfate (ll), and the orally effective (phosphine) gold (I) thiolate auranofin (15). Isomer shifts and quadrupole coupling constants indicate that gold atoms in the 1: l ...