Electron Attachment in C8F16O

Abstract

The negative ion spectrum of C₈F₁₆O⁶ at low electron energies has been obtained using the mass spectrometer. The most intense peaks are identified as C₈F₁₆O^—, C₇F₁₄^—, C₅F₉O^—, C₄F₈O^—, C₄F₇O^—, C₃F₆O^—, and CF₃O^— ions. Formation of the CF₃O^— ion requires a rearrangement process. Appearance potentials and attachment energy ranges of the most intense peaks are given. Positive and negative ion fragmentation of the molecule is discussed relative to the components of the mixture, perfluoro‐2‐butyltetrahydrofuran and perfluoro‐2‐propyltetrahydropyran and its separation.