Preparation of the KrF+, Kr2F3+, and BrF6+ ions and their characterisation by 19F nuclear magnetic resonance and Raman spectroscopy

Abstract

New adducts of KrF₂ with AsF₅, SbF₅, and PtF₅ are shown by ¹⁹F n.m.r. and Raman spectroscopy to be the ionic compounds KrF⁺MF₆^–(M = As, Sb, or Pt), KrF⁺Sb₂F₁₁^–, Kr₂F₃⁺MF₆^–(M = As or Sb), and Kr₂F₃⁺MF₆^–,nKrF₂(M = As or Sb); the gross structure of the new cation, Kr₂F₃⁺, has been established and appears to be similar to that of Xe₂F₃⁺; the new cation, BrF₆⁺, has also been prepared by oxidation of BrF₅ with Kr₂F₃⁺.