Structure investigations on oxygen fluorides

Abstract

The crystal structure of O₂F₂ is obtained at −180 °C. In the solid state the molecule has the typical hydrogen peroxide structure that has been established long ago by electron diffraction and microwave spectroscopy. OF₂ melts at −223.8 °C, so its structure is determined by powder X-ray data. The structure differs from the solid state structures of ozone and Br₂O. O₂F in its dissolved form as O₂⁺ H_nF_n+1⁻ oxidizes palladium to the four valence state, as found some time ago. The first product formed at low temperatures is (O₂⁺H₃Pd₂F₁₂⁻)_n.