Attempted synthesis of osmium(VI) and iridium(VI) thiofluorides; the preparation of OsF5·SF4 and IrF5·SF4
Abstract
The interaction of OsF6 or IrF6 with ZnS or B2S3 at elevated temperature yields the adducts OsF5·SF4 and IrF5·SF4 rather than the transition-metal thiofluorides. Infrared and X-ray powder diffraction studies indicate that the adducts have contributions to the bonding from the ionic formulations [SF3]+[OsF6]– and [SF3]+[IrF6]– and there is also 19F n.m.r. evidence for the latter in solution in anhydrous HF.