Reactions in Trifluoropropene and Trifluoropropyne Triggered by Low-Energy (0–12 eV) Electrons: From Single Bond Cleavages to Complex Unimolecular Decompositions
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Janina Kopyra
Abstract
Electron impact to trifluoropropene (CF3CH=CH2) and trifluoropropyne (CF3C≡CH) leads to rich resonant structures observed in the ion yields of various negatively charged fragment ions which are formed via resonant dissociative electron attachment (DEA). In the range between 1.8 and 3 eV the transient negative ions (TNIs) formed by electron attachment are assigned to one particle shape resonances of π* character, above 5 eV as two particle core excited resonances and in the energy range below 1 eV as diffuse transient negative ion states formed by polarisation and dipole forces. These transient parent anions decompose into various negatively charged fragments by the cleavage of single bonds (formation of F− and CF3−) but also via surprisingly complex unimolecular processes involving multiple bond cleavages, geometrical and electronic rearrangement in the transient anion and formation of new bonds.
© by Oldenbourg Wissenschaftsverlag, München, Germany
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- Reactions between Cold CHx+ and Slow H and H2
- Reactions in Trifluoropropene and Trifluoropropyne Triggered by Low-Energy (0–12 eV) Electrons: From Single Bond Cleavages to Complex Unimolecular Decompositions
- Direct Access to the Dipole-Forbidden nπ∗T1 State of p-Benzoquinone by Photodetachment Photoelectron Spectroscopy
- Quantitative Study of 4He Real Gas Effects Using Supersonic Beams
- Large Amplitude Motions in Cyclopentene and 1-Butene: Quantum Chemical Insights into the Ground- and Excited State Potential Energy Surfaces
- Coherent Excitation Transfer Driven by Torsional Dynamics: a Model Hamiltonian for PPV Type Systems
- H-Bonding Cooperativity Effects in Amyloids: Quantum Mechanical and Molecular Mechanics Study
- Ultrafast Charge Separation at the CdSe Quantum Dot/Methylviologen Interface: Dependence on Electron Acceptor Concentration
- Circular Dichroism in Ion Yields in Multiphoton Ionization of (R)-Propylene Oxide Employing Femtosecond Laser Pulses
- The Interaction of the Dipeptide Carnosine With Alkali Metal Ions Studied by Ion Trap Mass Spectrometry
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Articles in the same Issue
- Editorial
- Reactions between Cold CHx+ and Slow H and H2
- Reactions in Trifluoropropene and Trifluoropropyne Triggered by Low-Energy (0–12 eV) Electrons: From Single Bond Cleavages to Complex Unimolecular Decompositions
- Direct Access to the Dipole-Forbidden nπ∗T1 State of p-Benzoquinone by Photodetachment Photoelectron Spectroscopy
- Quantitative Study of 4He Real Gas Effects Using Supersonic Beams
- Large Amplitude Motions in Cyclopentene and 1-Butene: Quantum Chemical Insights into the Ground- and Excited State Potential Energy Surfaces
- Coherent Excitation Transfer Driven by Torsional Dynamics: a Model Hamiltonian for PPV Type Systems
- H-Bonding Cooperativity Effects in Amyloids: Quantum Mechanical and Molecular Mechanics Study
- Ultrafast Charge Separation at the CdSe Quantum Dot/Methylviologen Interface: Dependence on Electron Acceptor Concentration
- Circular Dichroism in Ion Yields in Multiphoton Ionization of (R)-Propylene Oxide Employing Femtosecond Laser Pulses
- The Interaction of the Dipeptide Carnosine With Alkali Metal Ions Studied by Ion Trap Mass Spectrometry
- Nonequilibrium NMR Methods for Monitoring Protein and RNA Folding
