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An (e, 2e + ion) study of low-energy electron-impact ionization and fragmentation of tetrahydrofuran with high mass and energy resolutions

MPS-Authors
/persons/resource/persons30934

Ren,  X. G.
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;
Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany;

/persons/resource/persons30893

Pflüger,  Thomas
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;
Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany;

/persons/resource/persons73511

Weyland,  Marvin
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;
Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany;

/persons/resource/persons30419

Dorn,  Alexander
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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http://dx.doi.org/10.1063/1.4896614
(Publisher version)

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Citation

Ren, X. G., Pflüger, T., Weyland, M., Baek, W. Y., Rabus, H., Ullrich, J., et al. (2014). An (e, 2e + ion) study of low-energy electron-impact ionization and fragmentation of tetrahydrofuran with high mass and energy resolutions. The Journal of Chemical Physics, 141(13): 134314. doi:10.1063/1.4896614.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0023-F9C7-A
Abstract
We study the low-energy (E 0 = 26 eV) electron-impact induced ionization and fragmentation of tetrahydrofuran using a reaction microscope. All three final-state charged particles, i.e., two outgoing electrons and one fragment ion, are detected in triple coincidence such that the momentum vectors and, consequently, the kinetic energies for charged reaction products are determined. The ionic fragments are clearly identified in the experiment with a mass resolution of 1 amu. The fragmentation pathways of tetrahydrofuran are investigated by measuring the ion kinetic energy spectra and the binding energy spectra where an energy resolution of 1.5 eV has been achieved using the recently developed photoemission electron source. Here, we will discuss the fragmentation reactions for the cations C4H8O+, C4H7O+, C2H3O+, C3H+6 , C3H+5 , C3H+3 , CH3O+, CHO+, and C2H+3 .