The formation of $O_2^{+}{\left[Pt{F}_6\right]}^{-}$ is the basis for the formation of xenon fluorides. This is because

The first ionization energy of xenon is quite close to that of dioxygen. Also, the molecular diameters of xenon and dioxygen are almost identical. Based on the above similarities it is observed that the compound that is formed by PtF₆ by the combination with oxygen, similar compound formed when PtF₆ combines with oxygen,