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Study of the radiative electron attachment and photodetachment processes for the C2H/C2H- and C4H/C4H- molecules

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Abstract

The photodetachment cross sections of the C2H− and C4H− molecular anions in their ground electronic and vibrational states are determined using the R-matrix approach. The obtained results are compared with available experimental data of absolute photodetachment cross sections. In addition, cross sections for the inverse process, i.e., radiative electron attachment, have also been determined and are used to obtain the corresponding thermally-averaged rate coefficients. At a temperature of 300 K, the rate coefficients are 2.3 × 10-16 and 18 × 10-16 cm3/s for C2H− and C4H−, respectively.

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Authors and Affiliations

  1. Department of Physics, University of Central Florida, Orlando, 32816, FL, USA

    Marjan Khamesian & Viatcheslav Kokoouline

  2. Department of Physics and Astronomy, Drake University, Des Moines, 50311, Iowa, USA

    Nicolas Douguet & Samantha Fonseca dos Santos

  3. Lawrence Berkeley National Laboratory, Chemical Sciences, Berkeley, 94720, CA, USA

    Samantha Fonseca dos Santos

  4. Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, Université Paris-Saclay, Bât. 505, Campus d’Orsay, 91405, Orsay Cedex, France

    Olivier Dulieu & Maurice Raoult

Authors
  1. Marjan Khamesian
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  2. Nicolas Douguet
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  3. Samantha Fonseca dos Santos
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  4. Olivier Dulieu
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  5. Maurice Raoult
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  6. Viatcheslav Kokoouline
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Correspondence to Viatcheslav Kokoouline.

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Khamesian, M., Douguet, N., dos Santos, S. et al. Study of the radiative electron attachment and photodetachment processes for the C2H/C2H- and C4H/C4H- molecules. Eur. Phys. J. D 70, 240 (2016). https://doi.org/10.1140/epjd/e2016-70138-1

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  • DOI: https://doi.org/10.1140/epjd/e2016-70138-1

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