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.
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