Dissociative electron attachment to C{sub 2}F{sub 5} radicals

Haughey, Sean A.; Field, Thomas A.; Langer, Judith; Shuman, Nicholas S.; Miller, Thomas M.; Friedman, Jeffrey F.; Viggiano, A. A.

doi:10.1063/1.4738759

Title: Dissociative electron attachment to C{sub 2}F{sub 5} radicals

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Abstract

Dissociative electron attachment to the reactive C{sub 2}F{sub 5} molecular radical has been investigated with two complimentary experimental methods; a single collision beam experiment and a new flowing afterglow Langmuir probe technique. The beam results show that F{sup -} is formed close to zero electron energy in dissociative electron attachment to C{sub 2}F{sub 5}. The afterglow measurements also show that F{sup -} is formed in collisions between electrons and C{sub 2}F{sub 5} molecules with rate constants of 3.7 Multiplication-Sign 10{sup -9} cm{sup 3} s{sup -1} to 4.7 Multiplication-Sign 10{sup -9} cm{sup 3} s{sup -1} at temperatures of 300-600 K. The rate constant increases slowly with increasing temperature, but the rise observed is smaller than the experimental uncertainty of 35%.

Authors:

Haughey, Sean A.; Field, Thomas A. ^[1]; Langer, Judith ^[2]; Shuman, Nicholas S.; Miller, Thomas M.; Friedman, Jeffrey F.; Viggiano, A. A. ^[3]

Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)
Technische Universitaet Berlin, Institut Optik und Atomare Physik, Hardenbergstr. 36, 10623 Berlin (Germany)
Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117-5776 (United States)

Publication Date:: Tue Aug 07 00:00:00 EDT 2012

OSTI Identifier:: 22100654

Resource Type:: Journal Article

Journal Name:: Journal of Chemical Physics

Additional Journal Information:: Journal Volume: 137; Journal Issue: 5; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 74 ATOMIC AND MOLECULAR PHYSICS; AFTERGLOW; ANIONS; DISSOCIATION; ELECTRON ATTACHMENT; FLUORINE IONS; ION-MOLECULE COLLISIONS; LANGMUIR PROBE; ORGANIC FLUORINE COMPOUNDS; RADICALS; REACTION KINETICS

Citation Formats


                    Haughey, Sean A., Field, Thomas A., Langer, Judith, Shuman, Nicholas S., Miller, Thomas M., Friedman, Jeffrey F., and Viggiano, A. A. Dissociative electron attachment to C{sub 2}F{sub 5} radicals.  United States: N. p., 2012. 
        Web.  doi:10.1063/1.4738759.

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                    Haughey, Sean A., Field, Thomas A., Langer, Judith, Shuman, Nicholas S., Miller, Thomas M., Friedman, Jeffrey F., & Viggiano, A. A. Dissociative electron attachment to C{sub 2}F{sub 5} radicals.  United States.  https://doi.org/10.1063/1.4738759

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                    Haughey, Sean A., Field, Thomas A., Langer, Judith, Shuman, Nicholas S., Miller, Thomas M., Friedman, Jeffrey F., and Viggiano, A. A. 2012.  
        "Dissociative electron attachment to C{sub 2}F{sub 5} radicals".  United States.  https://doi.org/10.1063/1.4738759.

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@article{osti_22100654,

  title        = {Dissociative electron attachment to C{sub 2}F{sub 5} radicals},

  author       = {Haughey, Sean A. and Field, Thomas A. and Langer, Judith and Shuman, Nicholas S. and Miller, Thomas M. and Friedman, Jeffrey F. and Viggiano, A. A.},

  abstractNote = {Dissociative electron attachment to the reactive C{sub 2}F{sub 5} molecular radical has been investigated with two complimentary experimental methods; a single collision beam experiment and a new flowing afterglow Langmuir probe technique. The beam results show that F{sup -} is formed close to zero electron energy in dissociative electron attachment to C{sub 2}F{sub 5}. The afterglow measurements also show that F{sup -} is formed in collisions between electrons and C{sub 2}F{sub 5} molecules with rate constants of 3.7 Multiplication-Sign 10{sup -9} cm{sup 3} s{sup -1} to 4.7 Multiplication-Sign 10{sup -9} cm{sup 3} s{sup -1} at temperatures of 300-600 K. The rate constant increases slowly with increasing temperature, but the rise observed is smaller than the experimental uncertainty of 35%.},

  doi          = {10.1063/1.4738759},

  url          = {https://www.osti.gov/biblio/22100654},
  journal      = {Journal of Chemical Physics},

  issn         = {0021-9606},

  number       = 5,

  volume       = 137,

  place        = {United States},

  year         = {Tue Aug 07 00:00:00 EDT 2012},

  month        = {Tue Aug 07 00:00:00 EDT 2012}

}

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