Abstract

Abstract Dissociative electron attachment to trifluoroacetic acid (CF 3 COOH) is characterized by an intense low energy shape resonance located near 1 eV and a comparatively weaker core excited resonance located near 7 eV. The shape resonance decomposes into the fragment ions CF 3 COO − , CF 2 COO − , and CF 2 - . The underlying reactions include simple bond cleavage but also more complex sequences involving multiple bond cleavages, rearrangement in the precursor ion and formation of new molecules (HF, CO 2 ). The core excited resonance additionally decomposes into F − , CF 3 - and probably metastable CO 2 - .

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