Strong fragmentation processes driven by low energy electron attachment to various small perfluoroether molecules
- Mitterdorfer, C.
- Edtbauer, A.
- Karolczak, S.
- Postler, J.
- Gschliesser, D.
- Denifl, S.
- Illenberger, E.
- Scheier, P.
DOIAbstract
AbstractNegative ion formation in the three perfluoroethers (PFEs) diglyme (C6F14O3), triglyme (C8F18O4) and crownether (C10F20O5) is studied following electron attachment in the range from ∼0 to 15eV. All three compounds show intense low energy resonances at subexcitation energies (<3eV) decomposing into a variety of negatively charged fragments. These fragment ions are generated via dissociative electron attachment (DEA), partly originating from sequential decompositions on the metastable (μs) time scale as observed from the MIKE (metastable induced kinetic energy) scans. Only in perfluorocrownether a signal due to the non-decomposed parent anion is observed. Additional and comparatively weaker resonances are located in the energy range b...
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