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Journal article

Absolute dissociative electron attachment cross sections in acetylene and its deuterated analogue

  • May, Olivier Department of Chemistry, University of Fribourg, Switzerland
  • Fedor, Juraj Department of Chemistry, University of Fribourg, Switzerland
  • Allan, Michael Department of Chemistry, University of Fribourg, Switzerland
    2010
Published in:
  • Chimia. - 2010, vol. 64, no. 3, p. 173-176
absolute cross section
dissociative electron attachment
isotope effect
English An instrument for the measurement of absolute dissociative electron attachment cross sections was constructed and applied to two prototype molecules, acetylene (C₂H₂) and deuterated acetylene (C₂D₂). The isotope effect at the first dissociative electron attachment band at 3 eV was determined-the cross section for C₂D⁻/C₂D₂ is 14.4 times smaller than that for C₂H⁻/C₂H₂. The results play a central role in validating recent theoretical work of Chourou and Orel. The dominant fragments at the second dissociative attachment band around 8 eV are the light fragments H⁻ or D⁻. These bands exhibit weaker isotope effects.
Faculty
Faculté des sciences et de médecine
Department
Département de Chimie
Language
  • English
Classification
Chemistry
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/301538
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