Dissociative electron attachment in C2H via electronic resonances
Investigation of microwave-activated CH4/H2 plasma used in chemical vapor deposition of diamond revealed the presence of electronically excited C2-*. Using high-level electronic structure methods, we investigate electronic structure of C2H- and suggest possible routes for formation of C2- in the ground (X$^2\Sigma_g^+$) and excited (B$^2\Sigma_u^+$) states via electronic resonances. To describe electronically metastable states, we employ the equation-of-motion coupled-cluster method augmented by the complex absorbing potential. The resonance wavefunctions are analyzed using natural transition orbitals. We identified several resonances in C2H-, including the state that may lead to C2-* (B$^2\Sigma_u^+$). Related Research |
Funding is provided by:
 National Science Foundation |  U.S. Department of Energy |  U.S. Army Research Laboratory |  USC Dornsife College of Letters, Arts, and Sciences |
Contact info
SSC-409, University of Southern California
Los Angeles, CA 90089-0482
Phone: 213-740-4929 (Prof. Krylov), 213-740-0893 (Lab)
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