Reactivity of transition metal fluorides—XI

Oxidation-reduction reactions of ruthenium hexafluoride with a selected series of reductants have been studied. The results of this investigation have been correlated with those of previous studies of the higher fluorides of the transition metals. An alternative procedure for the preparation of the thermally unstable hexafluorides of the transition metals (and actinides) is described, which requires only simple apparatus. New synthetic methods are reported for RuF5 and derived hexafluororuthenate(V) salts and for RuF4 and the preparation of [Ru(PF3)F4]n, a trifluorophosphine complex of Ru(IV), is described.