Metal LIII-edge extended X-ray absorption fine structure of 5d transition-metal hexafluorides and related fluoroanions

Abstract

Metal L_III-edge extended X-ray absorption fine structure data have been collected for WF₆, ReF₆, OsF₆, IrF₆ and PtF₆ as solids at 10 K, and refined to give M–F bond lengths which lie in the range 1.81–1.83 Å. Similar data have been obtained for the related hexafluoroanions K₂[MF₆] and K[MF₆](M = Os, Ir or Pt) as powdered solids at room temperature, which give M–F bond lengths of 1.92–1.93 and 1.88–1.91 Å respectively.