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
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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