NMR and structural features of noble-metal fluorides

NMR studies are reported on the structures of binary and other noble-metal fluorides. Revised measurements have been made on 19F chemical shifts and the anisotropy in them. A relationship is considered between the screening tensor for 19F and the electronic structure of the molecule or ion containing the noble-metal cation in the electronic configuration d6, d8, or d10. The observed anomalous shifts in this class of compound are explained qualitatively in terms of paired electrons in filled d shells affecting the result within the framework of the classical theory of magnetic nuclear screening