Publications by authors named "Ana Isabel Lozano"

Article Synopsis
  • * Time-of-flight mass spectra were recorded across a range of collision energies (17.5 to 350 eV), revealing that the branching ratios of different products depend significantly on the collision energy, especially at low to intermediate energies.
  • * The study highlights the role of the electron donor in reactions involving temporary negative ions, as evidenced by electronic state spectroscopy showing a significant Feshbach resonance, and is supported by quantum chemical calculations of molecular orbitals with potassium.
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In this contribution, we report a novel comprehensive investigation on negative ion formation from electron transfer processes mediated by neutral potassium atom collisions with neutral methanol molecules employing experimental and theoretical methodologies. Methanol collision-induced fragmentation yielding anion formation has been obtained by time-of-flight mass spectrometry in the wide energy range of 19 to 275 eV in the lab frame. The negative ions formed in such a collision process have been assigned to CHO, OH, and O, with a strong energy dependence especially at lower collision energies.

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We investigate the methanol absorption spectrum in the range 5.5-10.8 eV to provide accurate and absolute cross-sections values.

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In this study, novel measurements of negative ion formation in neutral potassium-neutral boronic acid collisions are reported in electron transfer experiments. The fragmentation pattern of phenylboronic acid is comprehensively investigated for a wide range of collision energies, i.e.

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